Mojoofch 2011 abstracts by otgonsuren davaajav

MONGOLIAN ACADEMY OF SCIENCES Institute of Chemistry and Chemical Technology

MONGOLIAN JOURNAL OF CHEMISTRY № 12 (38)

Ulaanbaatar 2011

Editorial board: Editorial-in-Chief:

Acad. Prof., Batsuren. D Dr. Minjigmaa. A

Members:

Acad. Prof., Temuujin. J Acad. Prof., Purevsuren. B Dr. Odontuya. G Dr. Ganbaatar. J Dr. Enkhtuul. S Dr. Gunbileg. D Dr. Khasbaatar. D Dr. Odonchimeg. M Dr. Chunsriimyatav. G

Prepared by: M.S Otgonsuren. D

MAS, 4th building, Peace Avenue, Ulaanbaatar 51, Mongolia. Fax: 976-11-453133 email: a_minji@yahoo.com

Preface

Mongolian Journal of Chemistry provides a unique forum for the publication of significant and original work across a variety of disciplines including chemistry, biology, physics, chemical engineering and material science, which is likely to be of interest to the multidisciplinary community that the journal addresses. Readership-MJC coverage is highly relevant to a variety of industrial and academic sectors including: pharmaceuticals; analytical science; coal and petrochemistry, bio- and nanotechnology; and materials science.

The Editors at Mongolian Journal of Chemistry are committed to publishing high quality new work which makes a significant contribution to the both academic and industrial sectors development. In order to meet this aim, submitted manuscripts were evaluated by the professional MJC Editors to ensure they meet essential criteria for publication in the journal. We have received over 30 papers from scientists working on a broad range of natural science. The second issue of Mongolian Journal of Chemistry (38th issue for Annual scientific reports) includes 28 papers. We thank you for your submission to our journal and look forward to get another submission next year.

Editor-in-Chief; Academician. Prof., Batsuren. D Dr. Minjigmaa. A

Preface

Organizing Committee: Dr. A. Minjigmaa Dr. S. Enkhtuul Dr. M. Odonchimeg Dr. G. Chunsriimyatav

Contents

1. Adsorption kinetics for the removal of copper(II) from aqueous solution by adsorbent PSTM-3T Burmaa. G, Nasantogtokh. O, Narantsogt. N, Perlee-Oidov.A…………...…...1-6 2. Gas Sensing Performance of Multiple-shell Hollow Silver and Hematite Composite Microspheres, Ariunaa.G., Burmaa.G., Xiaoyong lai, Dan wang,……………………....7-15 3. Characterisation of fly ashes from 4th Thermal Power Station of Ulaanbaatar City and its applicability for a zeolite synthesis, Temuujin.J, Minjigmaa. A, Davaabal.B, Ochirbat. Z.……………………………...……..……………….....………16-19 4. Improvement of Electrochemical Activity of Pt/MWCNT Catalyst for Proton Exchange Membrane Fuel Cell, Munkhshur. M, Battsengel.B, Bayardulam. J, Baasandorj.M……………………………….....……………….…...…..20-23 5. Hydrocracking of atmospheric distillable residue of Mongolian oil, Ts.Tugsuu, Sugimoto Yoshikazu, Enkhsaruul. B, Monkhoobor .D...………………………….....…24-28 6. The Precious metals (Au, Ag, Pt, Pd, Rh) adsorption on the Silicon – organic sorbents, Burmaa .G, Alen.S, Ganchimeg.Yu, Sukhbaatar.I...............……................…29-34 7. Study of rare earth elements in coal ash from Khartarvagatai coal deposit, Gantumur. B., Pagmadulam.M.……..............……………………….……………….…35-37 8. Some properties of testicular hyaluronidases, Enkhmaa.Ts., Purev.D, Bayarmaa.J,…………………………………………………………….………….…….38-41 9. Coumarins from Peucedanum hystrix growing in Mongolia, Ganbaatar J., Shults E. E., Otgonsuren D., Radnaeva L.D., Taraskin B., Badamkhand D.…...........…42-49 10. Physico -chemical quality of Bactrian camel milk, GANSAIKHAN O., BATSUKH.TS., ICHINHORLOO.Z,...……………………………………..………………...50-52 11. Study on arsenic removal process from water, Bayarmaa.B, Selenge.E, Yang Min,..……………………………………………………………………………...53-55 12. Biochemical Study of Mumijo in Uvs province, Mongolia, Sukhdolgor.J, Orkhonselenge .D,………...….………………………………………………….………56-59 13. Activated carbons from Mongolian coals by thermal treatment, Ariunaa .A, Narangerel .J, Purevsuren .B, Erdenechimeg.R,………………………………….…..…60-64 14. Identification of Angiotensin I-converting enzyme Inhibitory Activities from traditional Mongolian fermented milk products, Bayarsaikhan.D, Kohji Yamaki, Enkhtaivan.G, Ichinkhorloo .………………………………..……..…..65- 68 15. Persistent organic pollutants (PCBs and OCP) in air and soil from Ulaanbaatar and the Lake Hovsgol region, Mongolia, Mamontova E.A.,

Tarasova E.N., Ganchimeg D., Kuzmin M.I., Mamontov A.A., Khomutova M.Yu., Burmaa G., Odontuya G., Erdenebayasgalan.G.……….............…………...…..………69-77 16. Bioactive phenolic acids from Scorzonera radiata Fisch, Tsevegsuren.N, Proksch. P, Wang .Y, Davaakhuu .G..…………………………...………………….………….…....78-84 17. New isoquinoline alkaloid from Carduus crispus L. Tunsag .J, Davaakhuu .G, Batsuren .D,………..…………………………..……………………….…………..……85-87 18. Utilization of spent brewer’s yeast Saccharomyces cerevisiae for the production of yeast enzymatic hydrolysate, Bayarjargal. M, Munkhbat. E, Ariunsaikhan. T, Odonchimeg.M, Uurzaikh. T, Gan-Erdene. T, Regdel. D,………..…………………….88-91 19. Chemical and biological investigation of the Agaricus silvaticus Schaeff ex. Secr, Munkhgerel. L, Erdenechimeg.N, Dumaa. M, Zhang. G, Odonmajig. P, Regdel.D,…...92-97 20. The mechanochemical activation study of Tsagaan-tsav zeolite, Zolzaya. Ts, Davaabal. B, Ochirbat. Z, Oyun-Erdene. G, Minjigmaa. A, Temuujin. J,…….............98 -101 21. Investigation on the possibility of obtaining of motor fuels from bituminous sand by heat treatment, Jadamba. D, Ulzii. B, Tuya. M,...……………….……...…102-106 22. Physics-chemical study of hydration process of three calcium aluminate phase and Metakaolin, Erdenebat. Ts, Sanjaasuren. R, ……………………...……….…...107-112 23. Alkaloids from cultivated plant of Peganum harmala L, Javzan. S, Selenge. D, Jamyansan. Y, Nadmid. J, Ouynbileg.Yu, ………..……………….…..113-116 24. Phytochemical study on Berberis sibirica Pall, Solongo. A, Istatkova. R, Philipov. S, Javzan. S, Selenge. D…..…….…..……………………………………..117-122 25. Recent and future of cement and concrete industries- a root of our development, Erdenebat. Ts, Otgonlham. J, Oyunzul. E, Sanjaasuren. R,……........123-125 26. Fatty acid, Tocopherol and Sterol Composition in Sea buckthorn (Hippophae rhamnoides L.) of Mongolia, Otgonbayar.Ch, Matthaus. B, Odonmajig. P...……...126-130 27. The Quality and Safety of Imported Food: The Danger of Pesticides, Dugar.B,………………………………………………………………………………131-135 28. Fourier Transform Infrared Spectroscopy Study on Cation adsorption on Viscose Rayon Succinate, Khasbaatar.D, Ung Su Choi…………….........………...136-141

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Adsorption kinetics for the removal of copper(II) from aqueous solution by adsorbent PSTM-3T G.Burmaa1, O.Nasantogtokh1, N.Narantsogt2, A.Perlee-Oidov1 1

Institut of Chemistry and Chemical Technology, MAS, Ulaanbaatar-13330 2 Mongolian State University of Education, School of Natural Sciences

Abstract: The batch removal of copper (II) from aqueous solution under different experimental conditions using silicon-organic sorbent poly[N,N’-bis(3-silseskquioxanilpropyl)thiocarbamide] (PSTM-3T) was investigated in this study. This sorbent was produced from the hydrolytic polycondensation reaction. The removal was favoured at pH = 5 for PSTM-3T. The effects of concentration and temperature have been reported. PSTM-3T was found to efficiently remove Cu(II) from solution. The batch sorption kinetics have been tested for a first-order reaction. The rate constants of adsorption have been calculated. The thermodynamic parameters (∆G 0, Kc) obtained to indicate the endothermic nature of Cu(II) adsorption on PSTM-3T. Keywords: Poly[N,N’-bis(3-silseskquioxanil)thiocarbamide], Langmuir, Freundlich isotherm, Thermodynamic parameters

[3-6] polymers have been reported. However, most of chelating silicon organic polymers are used for pre-concentration and determination of noble metal ions, the synthesis of silicon organic polymers usually takes a long time and the synthetic process is complicated. Previously, we studied the removal of Cr(VI) from wastewater, using PSTM-3T and activated carbon produced from sawdust under selected conditions [7]. These were preliminary studies. In this research, we investigate the adsorption kinetics of PSTM3T under wide range of conditions.

Introduction dsorption processes for water treatment have had a long and productive history. Activated carbon has been widely used in wastewater treatment to remove organic and inorganic pollutants. It was also found that activated carbon has a great potential to remove heavy metals such as cadmium, chromium, lead and copper according to the reference [1]. Heavy metals are widely used in modern industries, including textile, leather, tanning, electroplating and metal finishing. They are released to environment either in treated wastewater to surface waters or as sludge applied to landfill. Copper is known to be a toxic metal. Because of its toxicity, it is imperative to significantly reduce its discharge levels [2]. The pre-concentration and separation of elements by use of chelating silicon organic

Experimental Materials characterization Silicon-organic polymer [-O1.5Si(CH2)3HNC(S)NH(CH2)3SiO1.5-]n – poly[N,N’-bis(3silseskquioxanilpropyl)thiocarbamide] used in this study was synthesized [3] in Russia.

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Gas Sensing Performance of Multiple-shell Hollow Silver and Hematite Composite Microspheres Garnaad Ariunaa1, Gunchin Burmaa1, Xiaoyong Lai2, Dan Wang2, 1

Institute of Chemistry and Chemical Technology, MAS, Ulaanbaatar 13330, Mongolia, 2 Institute of Process Engineering, CAS, Beijing100190, China

Abstract: In this report, multiple-shell hollow silver and hematite composite microsphere has been prepared by using carbonaceous saccharide microsphere as template. The products were characterized by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX). The core size and shell thickness of hollow spheres obtained can be manipulated by changing the concentration of metal salt. The unique multiple-shell hollow silver and hematite composite microspheres may be potentially used as gas-sensor materials for detecting various toxic gases. Keywords: Carbonaceous saccharide, Template, Ag/Îą-Fe2O3 , Sensitivity

to provide more advantages in drug release with prolonged release time, in heterogeneous catalysis, and in Li ion batteries etc8. Very recently, they further extended this method to prepare metal oxide hollow microspheres with multiple shells and found that those multi-shelled hollow microspheres possessed very unique sensing properties, whose response significantly increases with their numbers of shells. Herein, we have attempted to prepare multiple shell hollow Ag/Îą-Fe2O3 composite sphere by carbonaceous microspheres as template and silver nitrate and iron nitrate solutions as precursors. We investigated the effect of various experimental parameters on the morphologies and phase of the resultant products, such as the concentration and pH value of solution and the ratio of silver and

Introduction ollow spheres with nanometer to micrometer dimensions, defined composition, controlled interior structure and tunable shell numbers have attracted tremendous attention because of their potential applications in catalysis, drug storage and controlled release, nanoreactors, photonic devices, sensor, and biotechnology, and so on1-6. Most of single shelled hollow spheres have been synthesized by template assisted synthesis or other methods2. Double shelled hollow spheres could be obtained by using sulfonated hollow sphere as template7,8 or the layer-by-layer templating technique. Furthermore, considerable effort has been devoted to fabricate hollow spheres with higher-level interior structure (such as multishell or multi-chamber), which are expected

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Characterisation of fly ashes from 4th Thermal Power Station of Ulaanbaatar city and its applicability for a zeolite synthesis J.Temuujin A.Minjigmaa, B.Davaabal, Z.Ochirbat Laboratory of Materials Science and Technology, Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar 51, Mongolia

Abstract: Fly ash from 4th thermal power station of Ulaanbaatar city have been characterised by xray fluorescence (XRF), x-ray diffractometry (XRD), particle size analyzer, specific surface area measurement (BET) and scanning electron microscope (SEM) observation. It was found that fly ash from Baganuur coal contains over 15 wt.% of calcium oxide (CaO) and could be assigned as class C fly ash, according to the International classification. Specific surface area of this fly ash was 2.75 m2 /g and mean particle diameter was 59.5 Âľm. Zeolitic compounds were synthesised by using mixture of this fly ash and a transition aluminium oxide under hydrothermal treatment at 100, 150 and 200o C temperatures for a different duration. Various zeolitic compounds including Na-faujasite and sodium aluminosilicate were synthesised as reaction products.

Keywords: fly ash, characterisation, hydrothermal treatment, zeolite synthesis

Introduction oal fired thermal power stations are generating a huge amount of byproducts such as fly ash and bottom ash. It was estimated that annual disposal of coal firing by-products is around 600 million tones worldwide with fly ash constituting about 500 million tones at 75-80% of the total ash produced [1]. Since, the coal firing byproducts are accumulating rapidly, it can be caused serious disposal problem. Most of the fly ashes are kept in an ash pond and disposed at landfill which could be considered as treat to land and water resources. Moreover, for the developed countries the disposal of the fly as will soon be too costly if not forbidden [2]. Coal firing by products have been used in construction related applications such as cement and concrete manufacturing, road and railroad bases, pavement, for the capture of

industrial and water treatment wastes, sources of valuable metals, ceramic applications, synthesis of several type of zeolite etc. [3]. In Mongolia coal fired thermal power stations are producing over 90% of electricity. Especially in Ulaanbaatar city all the required electricity is producing by 3 thermal power stations and the largest one is 4th thermal power station. The 4th thermal power station is using Baganuur and Shivee-ovoo coals for firing and annual disposed coal firing by product is over 300.000 tones. However, in Mongolia utilisation rate of the coal firing by product is negligible and seems to be caused by a little knowledge of mineralogical and physical-chemical properties of the fly ash. The goal of the present research was characterisation of the Baganuur fly ash and elucidation of its applicability for a zeolite production.

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Improvement of Electrochemical Activity of Pt/MWCNT Catalyst for Proton Exchange Membrane Fuel Cell Munkhshur Myekhlai 1,2, Battsengel Baatar1, Bayardulam Jamiyansuren1 and Baasandorj Myagmarsuren1 1 2

School of Chemistry and Chemical Engineering, National University of Mongolia Institute of Chemistry and Chemistry technology, Mongolian Academy of Sciences

ABSTRACT: In last years, the carbon nanotubes have been studied as an advanced metal catalyst

support for proton exchange membrane fuel cell. This study focuses on the sonochemical treatment of multi walled carbon nanotubes (MWCNTs) as a platinum supporting material for proton exchange membrane fuel cell (PEMFC) by mixture of sulfuric acid and nitric acid and mixture of sulfuric acid and hydrogen peroxide. X-ray diffraction (XRD) and Infrared (IR) spectroscopy were used to characterize the surface of sonochemically treated MWCNT and nanostructured electrocatalyst Pt/MWCNT. According to the experimental results of this work, the surface of MWCNT can be more successfully functionalized with hydroxyl and carboxyl groups after sonochemical treatment by mixture of sulfuric acid and nitric acid. The particle size of prepared Pt electrocatalyst on MWCNT was determined 3.4 nm by XRD. Keywords: Proton Exchange Membrane Fuel Cell, Multi Walled Carbon Nano Tubes

morphology, particle size, alloying degree [4, 5] and catalyst supports [6, 7]. In many of these applications, CNTs have to be surface functionalized [8]. Among various surface functionalization techniques, oxidation is probably the most widely studied. Oxidation of CNTs has been used to remove amorphous carbon for purification purposes [9] and to open CNT ends for metal nanoparticle insertion [10]. Early treatment techniques have involved gas-phase oxidation in air and oxidative plasmas but these techniques have led to an over-oxidation of CNTs, often severely damaging the CNTs and removing the amorphous carbon in addition. Liquid-phase oxidation involves acidic etching with nitric and/or sulfuric acids. Compared to gas-phase oxidation, this

Introduction arbon nanotubes (CNT) have attracted much attention due to their extraordinary electrical, mechanical and structural properties [1]. In recent years, there has been increasing interest in carbon nanotubes as heterogeneous catalyst support. Studies have shown that metal nanoparticles supported on carbon nanotubes may provide much improved catalytic activity [2]. Recently, carbon nanotubes have been proposed as promising support materials for fuel cell catalyst due to their unique characteristics, including high aspect ratio, high electron conductivity, and enhanced mass transport capability [3]. The catalytic activity of the Pt based catalysts is strongly dependent on the composition, structure,

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Hydrocracking of atmospheric distillable residue of Mongolian oil Ts.Tugsuu1, Sugimoto Yoshikazu2, B.Enkhsaruul1, D.Monkhoobor1 1

School of Chemistry and Chemical Engineering, NUM, PO Box-46/574, Ulaanbaatar 14201, Mongolia 2 Energy Technology Research Institute, AIST, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565, Japan

Abstract: Many catalytic processes to refine heavy part of crude oil have attracted much interest due to declining reserves of light crude oils. This study focused on hydrocracking process of atmospheric distillable residue of Mongolian crude oil in the first time compared to those of other countries. Residue samples were hydrocracked with a commercial catalyst at 450 0C, 4600C, 4700C for 2 h under hydrogen pressure of 10 MPa. The amount of residual fraction (350 oC<BP) decreased to 9.4wt% by the hydrocracking of atmospheric distillable residue from Tamsagbulag crude oil. When the ME-AR was hydrocracked, the high consumption of hydrogen was related to the lowest H/C atomic ratio of feed atmospheric residue. The amount of liquid fractions (BP<350 oC) including gaseous products increased from 45.4wt% to 89.2wt%, when the reaction temperature increased from 4500C to 4700C. The highest yield of the middle fraction for each sample was observed at temperature of 460 oC. On the other hand, the effect of temperature on the yield of middle fraction was not so high as compared with the yields of other fractions. The contents of n-paraffins on midlle and heavy fractions of TB-AR, DQ-AR were similar, but ME-ARâ&#x20AC;&#x2122;s was around 2 times lower than other after hydrocracking runs. Keywords: Hydrocracking, atmospheric residue, Tamsagbulag crude oil, commercial catalyst, middle fraction middle oils in order to produce motor fuels and chemicals [3,4]. The current study has focused on the catalytic hydrocracking process in the atmospheric distillable residue of Mongolian crude oil comparing with those of Chinese and Arabian crude oils at different temperatures under hydrogen pressure of 10 MPa using a commercial cracking catalyst. Our experiments have been carried out at the Hydrocracking Catalyst Laboratory of Advanced Fuel Group, Energy Technology Research Institute (ETRI), National Institute

Introduction n recent years, considerable attention has been paid to the research on refining process of heavy part of Mongolian crude oils. Mongolian crude oils have small amounts of sulfur [1] and heavy metals [2], which make some troubles to the refining processes of crude oil. Therefore, it is considered that there is a possibility to refine Mongolian crude oil by cheap and efficient technology. On the other hand, Mongolian crude oils contain a large amount of atmospheric residual (52.9 - 69.8 wt%), which should be converted into light and

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The Precious metals (Au, Ag, Pt, Pd, Rh) adsorption on the Silicon – organic sorbents G. Burmaa1, S. Alen1, Yu. Ganchimeg2, I. Sukhbaatar2 1

Institute of Chemistry and Chemical Technology, MAS Mongolian University of Science and Technology, School of Materials Technology

Abstract: Sorption activity of two types of Silicon-organic sorbents for the previous metals has been studied. A polymer – poly (3- silsesquioxanilpropylthiocarbamate) - 3- silsesquioxanilpropylammonium which was obtained by the hydrolytic poly-condensation reaction and has been determined its physical, chemical characteristics and its sorption activity for the Ag(I), Au(III), Pt(IV), Pd(II), Rh(III). It has been found out that the sorbent shows high static sorption of Gold (III), Mercury (II) at acidic condition. The second a net structured silicon-organic copolymer {SiO2*2[O1.5Si(CH2)3NHC5H4N}n was synthesized by hydrolytic co-poly-condensation reaction. It likely to react as an anionit that adsorbs chloro-complex anion of the Au (III), Pt(IV), Pd(II), Rh(III). Keyword: dithiocarbamate, 2-aminopyridine, sorption capacity, ion-coordination.

shown high activity (1.1mg-equa/g) in case of Ag(I) [4]. Then, adsorbed silver was fully desorbed by 0.25M ammonium hydroxide. When solution pH > 3, this sorbent has full sorption capacity for Pb(II) and Sn(II) and developed a spectrometer speedy method that used to determine these elements in spa water [4]. Therefore, silicon-organic sorbent (PTCA-3A) with dithiocarbamate group has been synthesized [5-7]. We are performing research evaluating of adsorption capacity of Hg(II), Au(III), Ag(I), Pt(IV), Rh(III) from aqueous solution . Organic derivatives of the dithiocarbamate have been used widely in practice. Most of them have an unique biological activity and therefore, it is become raw material of the pharmacy [8]. There is a special trend of the practical usage of organic compounds with dithiocarbamate group for determination of heavy metals in the

Introduction nitial systemic research about the complexity and silicon-organic ionite which contain complex forming or ion exchange groups started since 1977, when discovered the polymercaptomethylsilsesquioxane’s xerogel [1,2]. It was taken from hydrolytic polycondensation of the mercaptomethyltrialcosisilan HSCH2Si(RO)3 (R =CH3, C2H5). Poly-mercaptomethylsilsesquioxane’s xerogel is an adsorbent that has ability to adsorb Mercury (II) from the extremely diluted solution (0.012mg/l Hg) in the high diapason of the pH, fully [3]. This adsorbent showed high selective adsorption of Mercury(II) from solution which contains over concentrated ions of the Zn(II), Fe(II), Co(II), Ni(II) at pH 0.3-3. Now days this adsorbent is using for removal of Mercury from waste water of chlorine industry [3]. Also this sorbent has

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Study of rare earth elements in coal ash from Khartarvagatai coal deposit B.Gantumur1, M.Pagmadulam1 1

Hovd university, school of Natural Science and Technology, Department of Chemistry baasandorjg@yahoo.com

Abstract: Have been investigated the mineral matter and chemical composition of ash from the Khartarvagatai coal deposite by X-ray fluorescence (XRF) and atomic absorption spectroscopy (AAS) methods. In the ash of this coal have revealed trace elements like 小械, Th, Be, La, Nd, Y, As. These elements come from mineral gasparite that present in raw coal. All diffraction patterns were analyzed by full-profile Rietveld refinements, using the software package WinPLOTR Keywords: Khartarvagatai deposit, coal ash, rare earth elements, gasparite,

Introduction oal serves as source of energy resources and as source of organic compounds of 21th century. Nowadays more than 90 percent of Mongolian power electricity and heat energy are produced by using of coal resources and coal is the main and reliable source of energy throughout in all aimags and soums of Mongolia. Mongolia has a huge amount of coal resources and coal is cheaper in comparison with petroleum and natural gas. Demand of coal is increasing year by year. Unfortunately coal also may serve as source of pollutant of nature. At the same time coal ash is reliable source of rare earth and dispersal elements. Recently coal deposits are beginning to evaluated by their contents of rare earth and dispersal elements because of their needs in modern industrial branches. Therefore investigation of coal mineral matter, chemical composition and trace elements in ash is important task. Moreover, beneficiation of coal might give possibility to use coal completely without risk for nature damage.

Experimental Coal samples from deposit Khartarvagatai located in western Mongolia were used in the study. Khartarvagatai coal deposit is located in Mongol Altai mountains region. According to coal area this deposit belongs to Kharhiraa coal basin. The coal samples were ground and sieved to particle sizes 0.074 mm and subjected to combustion in a muffle furnace at 600oC temperature to obtain ash samples. The contents of trace elements were determined by PANalytical AXIOS Advanced sequential X-ray spectrometer installed in Central geological laboratory of Mongolia. The glass disks are used for trace element determination are prepared by using mixtures of lithium tetraborate and lithium metaborate, Spectromelt A12, Merck. For the dilution 4200 mg of this flux and 700 mg of the sample are weighed in platinumgold crucibles and fused for 15 min at 1100oC. The melt is poured into pre-heated, polished 32 mm-diameter moulds. For trace element determinations the standard deviations of consecutive analyses are in the 35

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Some properties of testicular hyaluronidases Enkhmaa Ts., Purev D., Bayarmaa J1 1

NUM, School of Biology and Biotechnology e-mail: enhma_87@yahoo.com

Abstract: The properties (pHopt, Topt, Km, temperature, acid and base stability of the enzyme activity) of hyaluronidase prepared from testes of bovine, horse, pig and antelope were determined. Keywords: hyaluronidases, hyaluronic acid, glycosaminoglycan

Introduction he hyaluronidases (EC 3.2.1.35) have been detected in many mammalian tissues and organs. Some bacteria such as Streptococcus pyogenes and Clostridium perfringens produce hyaluronidase (Ohya T., 1970). Hyaluronidase resists spreading of venoms and virulence of bacteria and may play a role in cancer metastasis and angiogenesis (Beckenlehner K., 1992). Therefore it is used in medicine (Schomberg D., 1991). There are many beneficial effects of hyaluronidase in the biological function. Mammalian oocytes are surrounded by several layers of cells embedded in extracellular matrix which contains protein and hyaluronic acid. That is why hyaluronidase degrades these layers. This process helps to spermatozoon fertelizing egg (Dandekar P., 1992). The substrate of hyaluronidase is hyaluronic acid (HA). It is a glycosaminoglycan with high molecular weight linear polymer built of large numbers of repeating units consisting of [-Dglucuronic acid-β1,3-N-acetyl-Dglucosamine- β1,4-]n (Laurent T.C., 1992).

Experimental Materials and chemicals: The testes of bovine, pig and horse were purchased from “МАХ IMPEX” company and testes of antelope were taken from Bayandun sum of Dornod aimag. Determination of enzyme activity: The enzyme activity was determined by classic turbidimetric assay (Yang C., 1975). This method is based on the estimation due to an interaction between albumin and HA. Mixture of 0.5 ml of hyaluronate solution (0.04-0.32 mg/ml of HA (Wortington) in 0.2-1.0 ml of 0.1 M sodium phosphate buffer with pH 5.3 which contains 0.15 M NaCl) and 0.5 ml of testicular extract was incubated at 37°C for 25 minutes. Then 9 ml of albumin was added to the solution and was being stayed for 10 minutes at room temperature. The color development was measured at 540 nm against control solution by the spectrophotometer. The results were compared with the standard curve. Plotting the standard curve: The solution of HA was heated for 5 minutes in a boiling water bath and 9 ml of albumin was added to test tubes and was measured at 540 nm against control solution.

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Coumarins from Peucedanum hystrix growing in Mongolia Ganbaatar J.1, Shults E. E. 2, Otgonsuren D.1, 1Radnaeva L.D.3, Taraskin B3., Badamkhand D.1 1

Institute of Chemistry and Chemical Technology, MAS; 2 Novosibirsk Institute of Organic Chemistry, SB RAS 3 Baikal Institute of Natural Management SB RAS

Abstract: It is proved to be that of genus Peucedanum hystrix serve as a source of biologically valuable natural coumarins. Nine angular furocoumarins belonging to class of 2'-substituted and 2',3'-disubstituted 2',3'-dihydrofurocoumarins have been isolated and structurally isolated. For peucenidin data of X-ray analysis is obtained.

Keywords: Peucedanum hystrix, coumarins, oroselol, columbianetin, X-ray analysis.

spread in Southern Siberia and Mongolia [2]. To our knowledge a systematic phytochemical investigation of this plant has not been properly carried out. Previously oroselon (1), оroselol (2) and 2'-(S)-Osenecioyl)-2',3'-dihydrooroselol (libanorin) (3) have been isolated from the Peucedanum hystrix Bge. [3].

Introduction lants of Umbelliferae family are known to be a good source of naturally occurring coumarins for producing of potential medicinal preparations [1]. Coumarins are considered as phytoalexins since plants produce them as defence substances when wounded or attacked by other organisms. Coumarins can be suggested to be beneficial for the plants themselves as natural biocontrolling antipathogenic compounds and for humans as remedy for hyperproliferative skin deseases and as reference compounds in various bioactive tests. Furthermore, coumarin containing plants are valuable as dietary supplements on the basis of their mild antimicrobial and antiinflammatory effects. Coumarins are also active in plant metabolism, taking part in growth regulation. Plants of genus Peucedanum sp. attract attention of scientists as source of coumarins. Peucedanum hystrix Bge. widely

Experimental NMR spectra of compounds were obtained in CDCl3 or CD3OD obtained on spectrometers Bruker AV-300 [working frequency 300.13 (1Н) and 75.47 МHz (13С)] and AV-600 [600.30 (1Н) и 150.96 МHz (13С)]. Different types of proton-proton and carbon-proton shifting correlation spectroscopy (СOSY, COXH, COLOC, NOESY) were used for assignment of signals in NMR spectra. Multiplesity of signals in 13С NMR spectra determined in regime J моdulation. High resolution massspectrometer DFS Thermo Scientific (energy 42

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Physico -chemical quality of Bactrian camel milk O.GANSAIKHAN1, TS.BATSUKH, Z.ICHINHORLOO2 School of Food Engineering  Biotechnology, Mongolian University of Science  Technology, Ulaanbaatar, Mongolia 2 School of Biomedicine, Chemistry and Biochemistry department, Health Science University of Mongolia Ulaanbaatar, Mongolia 1

Abstract: Present study was carried out to investigate the quality of camel milk. A wide variation was observed in the quality of raw camel milk. Specific gravity ranged between 1.014 and 1.017 (1.015±0.001), pH 6.53 and 6.77. Total solids, fat, protein, casein, lactose, ash and minerals contents ranged between 14.23 and 12.13, 5.56 and 8.29, 1.8 and 5.0, 1.8 and 3.2, 0.78 and 2.76, 2.9 and 4.12, 0.85 to 1.00 0.20 and 0.28 g per 100 g, respectively. Keywords; camel milk, Bactrian, chemical quality

drinks. They also widely used for folk medicine. 2 According to the FAO (Food and Agriculture Organization) certain antibodies in camel's milk can help fight diseases like cancer, HIV/Aids, Alzheimer's and hepatitis C. 4 Composition of camel milk depends on its feed and species: Bactrian milk has a higher fat content than Dromedary milk. Welldocumented properties of camel's milk include: ten times more iron than cow's milk, three to five times more vitamin C than cow's milk, rich in B vitamins, high in imunoglobins, high in protein, minerals, low in fat - 1.8-2% fat compared to 3.5-4% in cow's milk, low in cholesterol, anti-bacterial, anti-viral, anti-inflammatory, six types of fatty acid including lanolin acid.

Introduction he Mongols have been closely linked with the camel herd and they provided their food, clothes, housing, labor utensils, transport and fuel needs with what camel yielded. 9.6% of the entire camel herds in the world are Bactrian camels. Over 30% of this kind well the Gobi aria which holds 42% of the entine Mongolia. The lactation period of camel is 17 months. Depending on the natural, environmental and feeding conditions a camel can produce 0.5 liter of milk a day on the average and it’s possible to use 500-550 liter of milk a year. If milk about 80% of the entire she-camel herd of Mongolia and obtain 0.5 liter from a camel it is possible to use a million liters of milk a year. The Mongols have a specific technology of processing camel milk, that had come down generation to generation. As we know by now they make over 50 types of dairy products through the traditional method. The camel milk and dairy products not only meet the Gobi dwellers’ needs in food and

Experimental Milk samples from camels at various stages of lactation were collected at random from camel-rearing areas around Umnugovi and Dundgovi aimag. Milk samples (500 ml each) were collected in clean and sterilized sample bottles and brought to the laboratory 50

p 53-55

Study on arsenic removal process from water B.Bayarmaa1, E.Selenge1, Yang Min2 1

Health Science University of Mongolia. Research Center for Eco-Environmental Sciences, CAS. chuluun73@yahoo.com

Abstract: In this study a novel adsorbent, iron oxide, is used for As (V) or As (III) removal. Some ferric oxides have been reported to be effective for arsenic removal. Ferric oxides powder is a good adsorbent material since itâ&#x20AC;&#x2122;s has magnetic properties and a good adsorption capacity. The main purpose of this study has been focused on to study the relationship between adsorption capacity (ability, performance) and the surface characteristics of the ferric oxide. Prepared sampleâ&#x20AC;&#x2122;s capacity was evaluated. The value was 26.1-67.4 mg/g for As (V) and 20.5-47.8 mg/g for As (III). pH dependence was evaluated and when pH increasing, adsorption capacity was decreased. The kinetic was evaluated and about 12 hours reached equilibrium and a capacity of 49 mg/g for As (V) and 42 mg/g for As(III) was gained. The kinetic constants for arsenic adsorption on the ferrihydrite adsorbentâ&#x20AC;&#x2122;s were fitted.

Keywords. Ferrihydrite, adsorption, arsenic removal

exchange and reverse osmosis. Although these methods have been widely employed, they have several drawbacks: high operating and waste treatment costs, high consumption of reagents and large volume of sludge formation. In contrast, adsorption methods are considered to be very important because of their treatment stability, easy operation and compact facility. When the loaded adsorbent can be regenerated properly, the process can be sludge free. Conventional adsorbents used in arsenic removal are activated carbons and alumina, soils and resins which can be coated with different materials like iron or alumina. (The major disadvantages of these techniques are difficult separation (centrifugation or filtering), waste formation (both liquid and sludge) and in many cases poor adsorption capacity.) So in this study I use ferric oxides.

Introduction errihydrite is an iron oxy-hydroxide known to play an important role in the natural environment and fresher it is, higher the adsorption capacity it has. Its large surface area, strong adsorptive properties, and low cost make it an attractive material for removal of both cationic and anionic impurities from wastewater and drinking water. The use of ferrihydrite to remove arsenic from hydrometallurgical process solutions and wastewaters has received a great deal of attention over a number of years. Ferrihydrite readily adsorbs arsenic (V) in the form of arsenate anion (AsO43-), but probably the most effective method of removal of arsenic from aqueous solutions is through coprecipitation of arsenic with ferrihydrite.(1) The main arsenic removal techniques from drinking water are: oxidation, precipitation/co precipitation, coagulation, sorption, ion-

p 56-59

Biochemical Study of Mumijo in Uvs province, Mongolia J. Sukhdolgor1, D. Orkhonselenge2 1

Department of Biochemistry and Bioorganic Chemistry, School of Biology and Biotechnology, National University of Mongolia, Ulaanbaatar 210646, Mongolia 2 Biotechnology production, Research and Training Center, Public Health Institute, Ulaanbaatar 458645, Mongolia

Abstract: The authors cleared mumijo by extractive and distil methods, defined pure output of natural mumijo and compared difference between these two methods. We defined the amount of dry and extractive substances, raw oil, antioxidant-rutin, vitamin C, fulvic acid, common nitrogen and total protein, content of protein amino acids, and mineral elements in natural mumijo. We exposed 13 protein amino acids in sample of natural mumijo. The content of total irreplaceable amino acids (5) were 26.2%. The authors defined macro and microelements (42) in ash of natural mumijo. In sample of mumijo exposed 10 elements are oxide form, W, Y, Cs, La-rare metal of the earth, and actinoids- Nd, Th, U; lantanoids-Pr, Sm. The same exposed non-ferrous metal-Cu, Mo; light metalAl, mixed metal-Pb, Zn. However, the valuable metals-Au, Ag and white gold are not exposed. Keywords: Mumijo, protein amino acids, fulvic acid, mineral elements

Mumijo is still unclear whether it has geological or biological origin as it has numerous traces of vitamins and amino acids. Mumijo is not toxic, at least in reasonable quantities. A mumijo-like substance from Antarctica was found to contain glycerol derivatives and was also believed to have medicinal properties. Mumijo has a wide spectrum of pharmacological activity. A unique plant extract in combination with dozens of minerals: six amino acids, vitamins, A, B, C and P, natural steroids, terpenoids, phospholipids and polyphenol complexes. Mumijo contains trace and micro-elements (cobalt, nickel, copper, zinc, manganese, chromium, iron, sodium, potassium, magnesium, and others) (Shakirov, 1963). Mongolian researchers were studied about Mumijo at an ancient time. Agvaandondov (1991) translated it as “Khar magic”, “Brown method” and “Historical

Introduction umijo, also known as momia and shilajit is a thick, sticky tar-like substance with a colour ranging from white to dark brown, which sometimes found in Caucasus, Altai mountains and Tibet mountain chains. Mumijo is a word of Greece origin. The substance is mentioned in the works of Aristotle and Avicenna as a remedy with antiseptic and general stimulant properties used people in Caucasus. Most scientists agree that people observed wounded animals frequenting caves with mumijo and discovered the substance, similar substances are used for medicinal purposes throughout Tibet (Berun, 10th century; Jambaldorj, 1978). Some scientific research on mumijo has been done in the former USSR, including fullscale clinical trials. Most information on mumijo is known from Russian literature sources.

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Activated carbons from Mongolian coals by thermal treatment A. Ariunaa1, J. Narangerel2, B. Purevsuren1, R. Erdenechimeg1 1

Institute of Chemistry and Chemical Technology, MAS, Ulaanbaatar 51, Mongolia 2 Central Laboratory for Coal Research, Mineral Resources Authority of Mongolia, POB297, Ulaanbaatar 210628, Mongolia.

Abstract: Mongolian different rank coals were used as raw material to prepare activated carbons by physical activation method. The coal derived carbons were oxidized with nitric acid in order to introduce surface oxygen groups. The ultimate elemental analysis, scanning electron microscopy, surface area, pore size distribution analysis and selective neutralization method were used to characterize the surface properties of activated carbons, oxidized carbons and raw coals. The effect of coal grade on the adsorption properties of the carbons were studied. It was concluded that Naryn sukhait bituminous coal could be serve as suitable raw material for production of activated carbons for removal of heavy metal ions from solution. Keywords: lignite, subbituminous and bituminous coals, activated carbon, oxidized carbon

Introduction ongolia is a country with rich coal resources. Coal has been believed to be the major energy source among fossil fuels in the coming century because of its easy availability. Total geological resources of coal are 163 billion tones and a proven coal reserve is 9.3 billion tones [1]. In 2010 Mongolian coal production has been increased to 23 million tones, from which 17 million tones were exported to China. Coal is composed mostly of lignite, subbituminous and bituminous coals. The presence of contaminant heavy metal ions like cadmium, mercury and lead in the industrial area of Ulaanbaatar city is a growing problem due to their high toxicities. Direct use of activated carbon [2] or some of their modified forms such as oxidized carbons [3] for the removal of the toxic metal ionic pollutants present in waste water is of considerable importance.

To resolve the problems of environmental pollutions we need to investigate the possibility of obtaining activated carbons with certain adsorbing and filtering ability from different kind of coals, which are the cheapest raw materials in Mongolia. In principle, the processes for the preparation of active carbons can be divided into two categories - physical and chemical methods. The physical method consists of carbonization of the precursor followed by gasification of the resulting char by steam or by using of carbon dioxide [4]. The objective of the present work was to study the features on thermal decomposition of Mongolian Shivee-Ovoo lignite, Sharyn gol, Alagtogoo subbituminous coals, and Naryn sukhait bituminous coal, to establish the possibility to obtain adsorbent materials physical methods from these coals.

p 65-68

Identification of Angiotensin I-converting enzyme Inhibitory Activities from traditional Mongolian fermented milk products D.Bayarsaikhan1, Kohji YAMAKI 2, G.Enkhtaivan3, Z.Ichinkhorloo 4 1

Shastin Central Hospital, Clinical Nutrition Departmentl, Mongolia National Food Research Institute, Nutritional Function Laboratory, Japan, 3 Mongolian University of Science and Technology, School of Food Engineering and Biotechnology, 4 Health Sciences University. School of Biomedicine

Abstract: Several angiotensen-converting enzyme (ACE) inhibitory peptites have been detected in milk products. There are many traditional milk products in Mongolia. For this study, some Mongolian milk products were collected, and the ACE inhibitory activities of these samples were tested; an active fraction was found in aaruul made from mare’s milk. After purification by dialysis and HPLC, the active fractions were isolated. The molecular weight of the active component was 362.05 M, as determined by mass spectrometry. An authentic standard was used to determine the IC50 value of the inhibitory activity. From 5’-GMP is not much higher than that of the active peptide in sour milk and some flavonoids. However, this is the first report that shows that 5 ’ –GMP inhibits ACE activity. These results will provide useful information for the development of hypertension therapy agents. Keywords: traditional Mongolian milk product, angiotensin-converting enzyme, 5’-guanosine monophosphate

have been isolated from fermented dairy products. These include antibacterial, anticancer, immunomodulatory, mineralbinding, opioid and antihypertensive peptides. The dairy product making tradition, which has a 15,000 years of history in the region was a known skill for its ancient dwellers. Milk is sacred in Mongolia where milk and milk products are staple foods and produced in greatabundance from over 30 million head. Though more than 100 regional varieties are produced, traditional products are broadly classified as fat or protein -based or fermented. The Protein-based products aaruul (dried curd) is made that thick aarts is put on the wooden panel and pressed by a weight and cut it by threads, knife, and scraper or crumpled up and dried up finally. It is a

Introduction ngiotensin I-converting enzyme (ACE) is one of the vasopressor principle. ACE convert angiotensin I to angiotensin II, that has a vasopressor action, in the rennin-angiotensin system and also inactivates bradykinin that is in an antihypertensive peptide. Recently, modification of the conventional ACE inhibition assay procedure has been requested because of the use of harmful organic solvent such as ethyl acetate for the extraction of hippuric acid cleaved from Hippuryl-His-Leu by ACE and its complicated procedure. Fermented milk products, in addition to providing both energy and nutrients, are an excellent source of bioactive peptides. Numerous peptides with bioactive properties

p 69-77

Persistent organic pollutants (PCBs and OCP) in air and soil from Ulaanbaatar and the Lake Hovsgol region, Mongolia Mamontova E.A.1, Tarasova E.N.1, Ganchimeg D.2, Kuzmin M.I.1, Mamontov A.A.1, Khomutova M.Yu.1, Burmaa G.2, Odontuya G.2, Erdenebayasgalan G.3 1

A.P. Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences 2 Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences 3 Ministry of nature, environment and tourism, Mongolia

Abstract: The investigations of POPs in soil and air in three urban and rural sites of the Mongolia are presented. The POPs distribution in air repeats the POPs distribution in soil on the area investigated. The POPs levels in soil and air are lower than maximum permissible concentrations (MPC) and preliminary permissible concentrations (PPC) of PCBs and OCP accepted in Russia. POPs levels in Mongolian soil obtained in the investigation are comparable with those from background areas of the world. POPs levels in Mongolian air are in the frame of concentrations found in the world. The PCB homological pattern in soil near electric power station in Ulaanbaatar is close to homological pattern in PCB technical mixture (Sovol or Arochlor 1254). The homological patterns in soil from other sites changed due to the redistribution of PCB congeners in the environment. The ratio of DDT and its metabolites indicates fresh entrance of DDT in the environment of Mongolia due to the atmospheric transboundary transport from countries using DDT (China, India) or from local agricultural sources. Hazard indexes in result from human exposure with POPs in soil and air are lower by 2-4 orders than 1 that denotes the possible default of disturbances in target organ and system. CR under the same scenario corresponds to the first diapason that is taken by population as negligible risk, not differ from usual everyday risks. Such risks donâ&#x20AC;&#x2122;t require additional measures for the reducing of risks and their levels are a subject of periodical control. The necessity of additional investigation of POPs distribution and the fate in Mongolian environment is indicated. primary sources of formation and application (AMAP, 1998). The measures protecting human health and the environment form negative effects of the compounds are taken on the national, regional and international levels. The measures provide elimination and/or reduce the emission, release of POPs into environment and, if it is necessary, the cessation of production and application. Stockholm Convention on the persistent organic pollutants was adopted on the Conference of the Parties and opened for the signing 22 May 2001. More then 150

Introduction ersistent organic pollutants (POPs) is the group of dangerous compounds with common properties. They are persistent in environment; bioaccumulative along food chain; toxic for human and other alive organisms (AMAP, 1998; Sunden, 1998). POPs bring remote effects including cancer, disturbance of development, dysfunction of reproductive, endocrine and immune systems and other health problems. POPs are able to long range transport. POPs can be found in remote areas, far from

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Bioactive phenolic acids from Scorzonera radiata Fisch. N.Tsevegsuren1, P.Proksch2, Y.Wang3, G.Davaakhuu1 1

National University of Mongolia, 2Heinrich-Heine University, Duesseldorf, 3Peking University

ABSTRACT: Chromatographic separation of the crude extract obtained from the aerial parts of the Mongolian medicinal plant Scorzonera radiata yielded five new dihydrostilbenes [4], two new flavonoids, one new quinic acid derivative, as well as twenty known compounds including eight quinic acid derivatives, four flavonoids, two coumarins, five simple benzoic acids, and one monoterpene glycoside. We present here results on isolation and structural identification some active phenolic compounds from the Scorzonera radiata - eight quinic acid derivatives (quinic acid, 4,5-dicaffeoylquinic acid, 4,5-dicaffeoyl-epi-quinic acid, 3,5-dicaffeoylquinic acid, 3,5-dicaffeoyl-epi-quinic acid, chlorogenic acid, 5-p-coumaroylquinic acid (trans), 5-p-coumaroylquinic acid (cis)). Quinic acid derivatives exhibited antioxidative activity. Keywords. Quinic acid, dicaffeoylquinic acid, dicaffeoyl-epi-quinic acid, chlorogenic acid, coumaroylquinic acid,

other diseases [9]. Aerial parts of Mongolian medicinal plant S.radiata from Mongolia were studied by us for first time. The subject of this study was the isolation and structural elucidation of the secondary metabolites from medicinal plant S.radiata, followed by evaluation of their pharmocological potential. We have used various modern chromatographic techniques for separation and purification of natural products from the crude extract. The structures were unambiguously elucidated on the basis of one- and two-dimensional NMR and mass spectrometric data.

Introduction corzonera is a genus of the family Asteraceae that includes more than 150 species, which are distributed in the temperate zones of Eurasia. Eleven species of Scorzonera are found on the Mongolian plateau, two of which are endemic [2,5]. Scorzonera radiata Fisch. is a typical mesophyte and a perennial herbaceous rosette plant. All parts of the plant are used in Mongolian folk medicine for the treatment of poisonous ulcers, for fever caused by bacterial and viral infections, and for its diuretic and galactagogue properties [4]. No phytochemical studies have been reported for S. radiata, although other species of this genus have been studied extensively, resulting in the isolation of many active compounds including sesquiterpenes, lignans, neolignans, phenolic acids, triterpene derivatives, stilbene derivatives, dihydroisocoumarins, and flavonoids. Previously we have investigated S.divaricata and S.peseudodivaricata from Mongolian flora which were used in the Traditional Mongolian Medicine for cancer treatment and

Experimental Isolation of secondary metabolites from Scorzonera radiata The air-dried, powdered plant material of S.radiata was extracted exhaustively by maceration with MeOH (3x400 ml) at room temperature. The total extract was concentrated to dryness under vacuum. The concentrated solids were reconstituted with 100 ml of MeOH/H2O (3:7) and then partitioned successively with hexane (5x100

p 85-87

New isoquinoline alkaloid from Carduus crispus L. J.Tunsag1, G. Davaakhuu2, D.Batsuren1 1

Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences School of Chemistry & Chemical Engineering, National University of Mongolia, gda@num.edu.mn

Abstract: A new isoquinoline alkaloid, along with other known 4 bioactive compounds (1 isoquinoline alkaloid, 2 flavonoids, 1 coumarin), were isolated from the ethanol extract of aerial parts of Carduus crispus L. Crispine А N-oxide was newly isolated compound, two of them (quercetin and rutin) were compounds isolated for the first time from indicated plant. The structures of these compounds were elucidated and confirmed with spectroscopic methods e.g. 1H-NMR, 13C-NMR, EI-MS, COSY, HSQC, HMBC, and by comparison with literature data. Keywords: ethanol extract, chromatography, chloroform, crispine A N-oxide

NMR spectral data of this compound are given for the first time.

Introduction he genus Carduus (Compositae) comprises 95 species all over the world [1]. Two species (C.crispus L. & C.nutans L.) are widely distributed in Mongolia [2]. Investigations of chemical constitutes showed that flavonoids, alkaloids and coumarins are the main components of this genus [1,3,4,5]. C.crispus is used in Mongolian traditional medicine for treatment of gland’s cancer and as anaelgestics [6]. It has been shown that this plant has antioxidant and cell wall strengthening activity. It has been established the cytotoxic activity of the alcoholic extract of C.crispus. [3]. Isoquinoline alkaloids (crispine A-E, carcrisine A, B) and flavone glycoside were isolated from this plant collected in Inner Mongolia have been reported [1,3,5]. Herewith, we report about the isolation and structural elucidation of a new isoquinoline alkaloid; crispine A N-oxide. The 1H and 13C

Experimental Apparatus Melting point was determined on a Stuart SMP 10 apparatus. FABMS were measured on Bruker APEX II spectrometer. 1H NMR and 13C NMR (400 MHz) spectra (all in CDCl3) were recorded with a Bruker AM 400, using TMS as internal standard. Silica gel 60 (Merck 0.063-0.200 mesh) was used for column chromatography. Al2O3 plates were used for TLC. Plates were visualized by spraying with Dragendorff’s reagent. Plant material Aerial parts of C. crispus of its full flowering stage were collected in July 2003-2004, from Handgait place, near Ulaanbaatar city, Mongolia. A species was identified by Prof. Ch.Sanchir, Institute of Botany, Mongolian Academy of Sciences. Aerial parts of the 85

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Utilization of spent brewer’s yeast Saccharomyces cerevisiae for the production of yeast enzymatic hydrolysate M.Bayarjargal1, E.Munkhbat1, T.Ariunsaikhan1, M.Odonchimeg1, T.Uurzaikh2, T.Gan-Erdene1, D.Regdel3 1

Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences 2 Mongolian National University 3 Mongolian Academy of Sciences

Abstract: Spent brewer’s yeast (Saccharomyces cerevisiae) is a rich source of protein, vitamins and widely used as a raw material for production of food supplements. The autolysis and enzymatic treatment of spent brewer’s yeast using Pancreatin (2.5%) and Flavourzyme (2.5%) were performed at 45 oC and 50 oC, respectively. The autolysis and hydrolysis processes were evaluated by determining a soluble solids, soluble protein concentration and α-amino nitrogen content in a reaction mixture. The yield of pancreatic digest and α-amino nitrogen content was high in comparison with autolysis and Flavourzyme treatment. The total solids recovery in dry Yeast hydrolysate was about 50%, a protein and α-amino nitrogen content was 55.9 and 4.8%, respectively. These results show the possibility of utilizing the spent brewer’s yeast as hydrolysate using hydrolytic enzymes and use it as a food supplement after biological experiments. Keywords: spent brewer’s yeast Saccharomyces cerevisiae, enzymatic hydrolysis, Pancreatin, Flavourzyme protein and vitamin supplements in health and functional food. There are 3 main methods for the production of Yeast extract: autolysis, plasmolysis and hydrolysis [4]. Autolysis of the yeast is a degradation process carried out by activating the yeast’s own cell enzymes to disruption of cell components. Although autolysis is a traditional manufacturing process in the yeast extract production there are some disadvantages: low yield, difficulty in solid-liquid separation, poor taste characteristics as a flavor enhancer and risk of deterioration due to microbial contamination. Plasmolysis is a modified autolysis process in the presence of so-called accelerators, such as an inorganic salt

Introduction accharomyces cerevisiae yeast species are most extensively used in brewery industry and leaven bread dough [1, 2]. They are also a source for the production of Yeast extracts comprising the water soluble components of the yeast cell, the composition of which is primarily amino acids, peptides, carbohydrates and salts. Yeast extracts are used widely in food with two main purposes, i.e., to improve the flavor of food to satisfy consumer and to increase the nutritional value [3]. Yeast extracts used as ingredients in food industry for production of soups, gravies and meat products as well as in cosmetic materials, animal feed, microbiological growth media. Other applications include

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Chemical and biological investigation of the Agaricus silvaticus Schaeff ex. Secr L.Munkhgerel1, N.Erdenechimeg1, M.Dumaa1, G.Zhang2, P.Odonmajig1, D.Regdel1 1

Institute of Chemistry and Chemical Technology, MAS, Mongolia 2 Chengdu Institute of Biology, CAS, China

Abstract: Extract of Agaricus silvaticus Schaeff ex. Secr fungus have been known to have biological activities, including antibacterial, antiviral, anticancer, antioxidant, anticomplementary and immunostimulating effects. In this study we first time identified that Agaricus silvaticus Schaeff ex. Secr has interferon like activity. We first time isolated the four known compounds such as, mannitol (1), urea (2), ergosterol (3) and ergosterol peroxide (4) from 95% ethanol extracts of Agaricus silvaticus Schaeff ex. Secr in Mongolia. Their structures were elucidated on the basis of extensive analysis of spectral data and by comparison with authentic samples. Keywords: Agaricus silvaticus Schaeff ex. Secr., A.silvaticus, A.sylvaticus, IFN-like activity, luciferase, mannitol, urea, еrgosterol (ergosta-5,7,22-trien-3β-ol), ergosterol peroxide (5,8-epidioxy-5α,8α-ergosta-6,22E-dien-3β-ol)

composition and oxidation potentials more positive than those of the standards (ascorbic and gallic acids). A. silvaticus was the most efficient species presenting the lowest EC values in the chemical and biochemical assays and the highest antioxidant power in the electrochemical assays [3]. Agaricus silvaticus is able to reduce anemia and improve biochemical parameters in animals with cancer and has no adverse effects on the blood cells of healthy animals. Agaricus silvaticus treatment was able to reduce anemia in animals with cancer. Biochemical parameters were nearer the normal levels in animals treated with this mushroom. These results suggest that administration of Agaricus silvaticus Schaeff ex. Secr extract has beneficial effects in rats with Walker 256 tumor, especially in the hematopoietic system [4]. Brazilian researchers have reported that the effects of the dietary supplementation with Agaricus sylvaticus fungus in relation to

Introduction ushrooms are considered nutraceuticals or functional foods by many clinicians and researchers, a fact that has also stimulated the search by Brazilian producers for more advanced production techniques along with introduction of new species. According to Urben, there is great genetic variety of native Agaricus genus mushrooms cultivated throughout the world [1]. Agaricus is a large and important genus of mushroom containing both edible and poisonous species, with possibly over 300 members worldwide. This genus belongs to Phylum Basidiomycota, Class – Hymenomycetes (newly described Class Agaricomycetes), Order: Agaricales, Family: Agaricaceae [2]. Five Agaricus sp. proved to have antioxidant activity and mushroom extracts revealed similar electrochemical responses, suggesting similar electroactive chemical

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The mechanochemical activation study of Tsagaan-tsav zeolite Ts. Zolzaya, B. Davaabal, Z.Ochirbat, G. Oyun-Erdene, A. Minjigmaa, J. Temuujin Laboratory of Materials Science and Technology, Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences

Abstract: Characterisation of mechanochemically activated Tsagaan-tsav zeolite has been performed. Tsagaan-tsav zeolite has been activated with a vibration mill for 2, 3, 5, 10 and 20 minutes. Ball to powder ratios were varied 1:10, 1:20, 1:50 and 1:100. Efficiency of milling determined based on amorphisation rate and cation exchange capacity changes. The highest efficiency was obtained for zeolite milled with ball to powder ratio of 100. Structural characterisation was performed with XRD, SEM, BET and particle size analyzer. Mechanochemical activation improves cation exchange capacity of natural zeolite. Keywords: natural zeolite, mechanical activation, amorphisation, cation exchange capacity

mesopores and hence, to increase the surface area. At the same time some researchers suggested that mechanochemical activation of zeolite ruptures Al-O-Si bonding in zeolite thus improve the reactivity of the zeolite [5]. We have suggested that improving of the zeolite reactivity could cause improving of cation exchange capacity of a mechanically activated zeolite and may have some more applications. In this research, we have performed comparative study of zeolite after milling for a different duration.

Introduction atural zeolite comprises an aluminosilicate framework with its channels filled with water and exchangeable cations [1] and are widely applied as catalysts in chemical industries like oil refining, basic petrochemistry, and fine chemistry [2]. Although there are more than thirty known natural zeolites, only seven – mordenite, clinoptilolite, ferrierite, chabazite, erionite, phillipsite and analcime – occur in sufficient quantity [3]. Mongolia is rich in natural zeolite reserves and the highest reserve zeolite is clinoptilolite from Tsagaan-tsav deposit [4]. The structure of zeolite is known to be composed of (Si,Al)O4 tetrahedra, which share all their oxygen vertices with neighboring tetrahedra. The negative charge of the framework is balanced by alkalis and alkaline earths located outside the tetrahedra, in the channels. Such alkaline and alkaline earths ions are called exchangeable cations [3]. Zeolite structure can be modified by either an acid or a base leaching to create

Experimental Natural zeolite samples from “Tsagaan-tsav” deposit in Saikhan-dulaan sum in Dondgovi-aimag was used as starting material. Chemical composition of zeolite was determined by XRF (Rigaku, Primini). Chemical composition of zeolite was (wt%): SiO2 (72.6), Al2O3 (14.8), K2O (4.2), Na2O (3.54), Fe2O3 (2.16), CaO (1.51), MgO (0.709), TiO2 (0.207), SrO (0.125), P2O5 (0.0417).

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Investigation on the possibility of obtaining of motor fuels from bituminous sand by heat treatment D. Jadamba, B. Ulzii, M. Tuya Institute of Chemistry and Chemical Technology, Mongolian Academy of Science, 13330, Ulan-Bator, Bayanzurkh-51, St.Enkhtaivana, IV. Email: jadamba_dash@yahoo.com Keywords; bituminous sand, thermal treatment, synthetic fuels

Herlen, 40 km from the soum centre and 55 km from the Railway station. The BayanErkhet deposits consists of two oil bearing layers area of 0.025 km2 with a thickness of 0.5-0.6 m and the lower – 0.4 km2 whit a thickness of 0.1-15.2 m and has supplies 1913.6 thousand tons of estimated resources.

Introduction ave been obtained a oil like liquid product with hydrocarbon type from bituminous sand of Bayan-Erkhet deposits by a heat treatment. Main characteristics and chemical composition of the bitumens isolated by extraction various organic solvents from the bituminuos sand of the Bayan-Erhet deposits are determined. Show that they are similar composition and properties there bitumen asphalt or natural bitumens. The possibility of obtaining of synthetic oil by heat treatment of bitumens is estimated up to 600 оС in laboratory conditions. Have been determined the possibility of obtaining high-quality oil from the liquid product from the thermal treated bituminous sands of Bayan Erhet by using of Nb-Zr-aluminosilicate catalyst type ZSM-5, and by varying the temperature of the process. On the basis of this treatment was obtained an additional petroleum products, which are the basic components of motor fuels.. Key words; bituminous sand, thermal treatment, synthetic fuels

Results and discussion Isolation of bitumen from tar sands, the study of physical and chemical properties. Results of bituminous sands extraction with various solvents and hot water are shown in Table-1 Table 1. The yields of the bitumens isolated by extraction of various organic solution and hot water from bituminous sand Yields of bitumen, mass. % Deposit name

BayanErhket

Choloro form

Petrolein ether (40-70 0 С)

14,75

11,27

Benzene

0,18

Ethanol : benzene (1:1)

Hot water

NaHCO3 7% solution

0,15

7,46

9,23

The dates in Table 1 show that the yields of organic matter extracted with chloroform are 14.75 and 20.4 %. The extraction of bitumen from tar sands, the best is with choloroform, which was chosen that more polar character than all other applied solvents.

Experimental The object of the study were samples of bituminous sands of the Bayan-Erkhet deposits. Bituminous sands of Bayan-Erhket deposit is located in the of Tuw aimag Bayanjargalan village, 5 km from the river

102

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Physics-chemical study of hydration process of three calcium aluminate phase and Metakaolin Ts.Erdenebat, R.Sanjaasuren Centre for Chemistry and Technology of New Materials, School of Chemistry and Chemical Engineering, National University of Mongolia

Abstract: This research based on X-Ray Diffraction, SEM and chemical analyses were revealed that decreasing of Ca(OH)2 phase content and increasing of C3 AH6 and trisulfate aluminate calcium-3 as the stable phases for the hydration period of first 30 to 60 minutes when comparing K-crent doping to the phase to without any doping. Also results have been proposed in case of doping metakaoline to draw structural analogies as formation of stable hydrated phases and the decrease of new formed unstable crystalline metaphases in the early stage of 3CAO·Al2O3 hydration process.

In recent years many researchers have interested in the study of crystallizing a substance which can serve as crystal nuclei centre and accelerate their crystal growth process [11-15]. Portland cement is a fine-dispersial system consisting of multiple phases, therefore, understanding its hydration process means studying of its each phase hydration processes [17]. Theoretical and practical consequences of this work were considered the possibility to decrease Ca(OH)2 phase formation and increase C3AH6 and trisulfate aluminate calcium as the stable phases of cement hydrated compoundsby using the K-crent doping. These stable phases’ formation would increase of cement paste compressive strenght by 100-250 kg/cm2 when doping this Crent to the C3A as cement interphases.

Introduction ricalcium aluminate (C3A), which could compose up to 15% of the Portland cement, reacts very quickly with water to form calcium hydro aluminates that induces the stiffening of cement paste. To avoid this phenomenon, calcium sulphate is usually added which leads to the formation of calcium three sulfoaluminate with a slow hydration [1-2]. In last 5-6 years research for obtaining of a new crystallizing component such as crent from kaoline, basalts and zeolites has been successfully going on at the Centre for Chemistry and Technology of New Materials, National University of Mongolia. Such research also have conducted in high developed countries since ninety years. It was established that cement compressive strength increased by 100-250 kg/cm2 when doped 5-10% of Crent to the cement weight [3-6]. However, there were a lot of complicated situation with crystal structure formationing and crystal growth mechanisms during the cement hydration processes [8-10, 16].

Experimental Making mineral additives Kaolin from Khongor-Ovoo deposit of Dornogovi province’s was employed in this

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Alkaloids from cultivated plant of Peganum harmala L S. Javzan1, D. Selenge1, Y. Jamyansan1, J. Nadmid2, Yu Ouynbileg3 1

. Institute of Chemistry and Chemical Techology, Mongolian Academy of Sciences, Ulaanbaatar 51, Mongolia 2 Mongolian University of Science and Technology, School of Materials Technology 3 Institute of Biology, Mongolian Academy of Sciences,Ulaanbaatar 51, Mongolia

Abstract: Alkaloids such as 1H-cyclopenta(b) quinoline, 2.3.5.6.7.8-hexahydro-9-amino-; Vasicinone(1H-PyrrĐžlo[2.1-b]quinazolin-9-one,3-hydroxy-2.3-dihydro) and harmine were isolated from cultivated plant of P. harmala. Four unknown alkaloids were isolated from P. harmala for the first time: 2.2.6.6-Tetramethyl-4-piperidone., Quinoline, 2.3.4-trimethyl-., Pyridine, 2-phenoxy-4amino- and 4-(3-Propynyloxy)- quinazoline. Their structures were determined by GC-MS. Keywords: GC-MS, alkaloids, harmine, Peganum, Zygophyllaceae

have been employed in the cases of asthma and rhematism treatments [7]. Many components such as alkaloids, flavonoids, stroides and amino acids have been isolated from P. harmala [8-10]. The Î˛-carboline type alkaloids-harmine and harmaline were discovered in P.harmala and are well known as a central nervous system(CNS) stumlant [11] and hypotensive substances, antispasmolitic, antihistaminic, vasorelaxant, antibacterial, sedative effects, cytotoxic, antivirus activities and narcotic effect (vasicinone) [12-13]. Thus, the alkaliod fractions of three plants of the genus Peganum showed anti-tumor activity. Previously, alkaloids, (+-)-vasicinone, 6hydroxy-6.8.9.11-tetrahydro[2.1b]quinazolin-11-one, (+-)-vasicine, (+-)vasicinolone, deoxyvasicinone, 6.7.8.9tetrahydro-pyrido[2.1-b] quinozolin-11-one, peganine, tetrahydroharmine, harmaline, harmine, harmalol, harmol[14-15], dipegine, dipeginol[16] and desoxypeganine[17] were

Introduction he genus Peganum (Zygophyllaceae) comprises 6 species, that are widely distributed in Northern America, Mediterranean regian, Russia and Mongolia. There were found 3 species- Peganum nigellastrum Bunge, Peganum harmala L and Peganum multisectum Maxim in Mongolia[1]. One of them- Peganum harmala (P.harmala) is commonly found in the Dzungarian Gobi, Transaltai Gobi, Depression of Great lakes, Valley of Lakes, Mongolian Altai and Gobi [2]. This plant has been used as a Chinese traditional medicine against a rheumatism, an abscess, an inflammation and so on[3]. In traditional Mongolian medicine it is used as antitussive and antidote and it also eliminates yellow liquorstasis[4]. At the same time, P. harmala is well-known traditional herbal medicine in China and Asian countries for the treatment of a variety of human ailments[5] and skin diseases[6]. Its seeds showed narcotic, anthelmintic and antispasmodic effects and

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Phytochemical study on Berberis sibirica Pall. A.Solongo1, R. Istatkova2, S. Philipov2, S.Javzan 1, D.Selenge1 1

Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar 210351, Mongolia Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev bl.9, 1113 Sofia, Bulgaria solongoamgalan@yahoo.com

Abstract: From the aerial parts (700g) of berberis sibirica pall. 6 isoquinoline alkaloids of protoberberine, protopine, benzophenantridine and proaporphine type were isolated. The known alkaloids (-)-tetrahydropseudocoptisine, pseudoprotopine, (+)-chelidonine and (+)-glaziovine are new for the family berberidaceae. from the aerial part ii (3.9 kg) 14 isoquinoline alkaloids of aporphine, proaporphine, protoberberine, protopine, benzylisoquinoline, bisbenzylisoquinoline, proaporphine-benzylisoquinoline and simple isoquinolin type were isolated and identified. The aporphine alkaloid 1-o-methylisotebaidine and simple isoquinoline dehydrocorypalline have been found for the first time in the family of berberidaceae. From the roots of b. sibirica 10 isoquinoline alkaloids of protoberberine, benzylisoquinoline, bisbenzylisoquinoline, aporphinebenzylisoquinoline and proaporphine-benzylisoquinoline type were isolated. 1,10-di-omethylpakistanine has been reported for the first time as a natural alkaloid. The known alkaloids (-) -isothalidezine and (+)-armepavine have been found for the first time in the family berberidaceae. all structures were determined by physical and spectral data. Key words: berberis sibirica pall., 21 bisoquinoline alkaloids, 1,10-di-o-methylpakistanine

antidote and antipyretic remedy, as well as for rheumatism and excessive menstruation [ 4].

Introduction

erberidaceae is a large family of flowering plants divided into 15 genera. The family contains about 570 species, of which the majority (about 450) belongs to the biggest genus in this family Berberis L. [1]. The Berberis species have been deeply investigated because of biological active compounds, namely isoquinoline alkaloids, containing inside [ 2,3]. The genus Berberis is represented by two species in Mongolian flora. Berberis sibirica Pall. is wide spread in Central and North Mongolia - Gobi and Altai regions. In the traditional medicine the species is used as

Experimental Materials and methods. GENERAL. UV: SESIL CE 8020, MeOH. IR: Bruker IFS113V, KBr. MS: Hewlett Packard MSD 5973, 70 eV. 1H NMR, 13C NMR and 2D experiments: Bruker DRX-250, in CDCl3, with TMS as internal standard. Optical rotation: Perkin-Elmer 241, MeOH. Vacuum liquid chromatography (VLC): silica gel (Merck, Kieselgel 60, 70-230 mesh). Column chromatography (CC): neutra alumina (Merck, Aluminiumoxid 90, act. II-III Brockmann, 70-230 mesh). PTLC: Kieselgel

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Recent and future of cement and concrete industries- a root of our development Ts.Erdenebat1, J.Otgonlham1, E.Oyunzul1, R.Sanjaasuren1 1

Centre for Chemistry and Technology of New Materials, School of Chemistry and Chemical Engineering, National University of Mongolia

Abstract: This paper considers that cement and concrete industry is contributing to our country development positively, and cement and concrete industry also can be reduced environmental pressure by;- Continuously reducing the CO2 emission from cement production by increased use of biofuels and alternative raw materials as well as introducing modified low energy clinker types and cement with reduced clinker content or geopolymer cement and a new type concrete. - Exploiting the potential of waste bricks, cement and concrete recycling to decrease the emission of CO2 . - Exploiting the thermal mass of concrete to create energy optimized solutions for heating and cooling residential and office buildings.

Keywords: climate change, CO2 emission, brick, block, cementitious materials, cement and concrete, building and policymakers

cement is expected to increase from year to year, because of increasing energy prize. Therefore scientists are attempting to prepare OPC and other binding materials at lower cost by using agricultural and industrial wastes during clinkerization and by making blended cements. The measures are changed to decrease the cost of production, conserve mineral resources and protect the environment by beneficial disposal of wastes. So blended cements are usually blends of Portland cement clinker with other finely ground materials (known as mineral admixtures) that take part in the hydration reactions and thereby make a substantial contribution to the hydration products. In last 10 years at the Centre for Chemistry and Technology of New Materials, National University of Mongolia, our researchers have

Introduction eading branches of industry at present in Mongolia are:

L -

Coal mining for electric power station, - Ore dressing plant (copper, molybdenum, fluorspar, gold etc.), - Manufacture of building materials (cement, concrete, brick, lime etc.), - Manufacture of food products - Manufacture of light industry (clothing, cashmere, wool, leather and other products). Cement is an essential material in todayâ&#x20AC;&#x2122;s society because, it major constituent of concrete which act, as a fundamental element of any housing, commercial or infrastructure development. But the cost to manufacture

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Fatty acid, Tocopherol and Sterol Composition in Sea buckthorn (Hippophae rhamnoides L.) of Mongolia Otgonbayar.Ch1, B.Matthaus2, P.Odonmajig1 1

Institute of Chemistry and Chemical Technology, MAS 2 Max Rubner-Institute, Detmold, Germany

Absract: The content and composition of lipids isolated from seed and pulp of sea buckthorn were investigated. Fatty acids and sterols were analyzed by CGC while tocopherols were analyzed by HPLC. 12.67% glyceride was found in the seed. The oil of sea buckthorn seed oil showed low lewels of saturated fatty acids in comparison with the buckthorn pulp oil. Palmitic (7.13%), oleic (15.85%), linoleic (36.9%) and linolenic acids (31.11%) predominated in the seed oil. Palmitic (29.17%), palmitoleic (32.86%), oleic (4.92%), vaccenic (9.35%) and linoleic (16.08%) fatty acid was dominating in the pulp oil. The primary tocopherol of sea buckthorn seed and pulp oil were Îątocopherol and Îł-tocopherol (46.54mg/100g, 59.02mg/100g). Seed oil contains more (94.34mg/100g) total sterols than pulp (90.25mg/100g) oil. Keywords: Hippophae rhamnoide, seed oil, pulp oil, fatty acids, tocopherols, sterols

is obtained from the whole berries, pulp or seeds. Seed or pulp oil is usually yellow in color represented by the occurrence of large amount of carotenoids [2, 3]. The literature describing the role of Hippophae in prevention and control of cancer is inadequate, however certain analysis the known experimental research information on anticancer by Hippophae available at present [4]. The oil of sea buckthorn has general nourishing, revitalizing, and restorative action. It can be used for treatment of acne, dermatitis, irritated, dry itching skin, sore skin, skin ulcers, burns, scalds, cuts and tissue regeneration. Sea buckthorn oil effectively combats wrinkles, dryness and other symptoms of malnourished or prematurely aging skin and is utilized in anti aging skin creams and lotions (5,6). Sea buckthorn oil is one of the most imperative products obtained from the sea buckthorn seed and pulp is now commercially very important.

Introduction ippophae (sea buckthorn) is a deciduous spiny shrub or small tree between two to four meter high, widely distributed throughout the temperate zone of Asia and Europe. The fruit characteristics, Asiatic geographical distribution and cultural practices of sea buckthorn are reviewed [1]. Sea buckthorn (Hippophae rhamnoides) is one of the important natural resources of the mountainous regions of China and Russia. The plant grows naturally in sandy soil at an altitude of 1,200-4,500 meters (4,000-14,000 feet) in cold climates, though it can be cultivated at lower altitudes and in temperate zones. Recently it has been extensively planted across much of northern China, and in other countries, to prevent soil erosion and to serve as an economic resource for food and medicine products. Mongolia has invested in planting sea buckthorn, in the 2000s. The oil

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The Quality and Safety of Imported Food: The Danger of Pesticides Batgerel Dugar1 1

The head of united laboratory of Borders specialized inspection department in Zamin-Uud; E-mail: batgerel.dugar@yahoo.com

Abstract: The analysis of pesticide residue in imported food by thin layer chromatography is reported in this work. The pesticide residue was found in 34 samples of 11 kinds fresh harvested vegetables during fall of 2011. Keywords: pesticides, pesticide residue, thin layer chromatography

Health Ministry, shows that the Mongolians are suffering from unknown illnesses and the average age of the young patient is getting lower. Since the Mongolia’s economic situation has been improving, the government declared the 2008 as “The Year of Food Security” while two billion tugrugs has been donated to the Zamiin-Uud Border Specialized Inspection Station. Recently, the government has announced its plan to “Bringing virgin land under cultivation” and has given support to farmers who plant potatoes, vegetables and wheat. Measures have also been taken to improve laboratories efficiency and procedures of the State Specialized Inspection Department and Border Specialized Inspection Stations. So far, the influence of imported food quality has positively revealed. However, there are still many problems related to food delivered to Mongolia as follow: a. Imported foods do not meet national health standard. b. Mongolia must reach global development standards for food quality and safety.

Introduction ne of primary concerns of national security is the quality of food products. Especially in Mongolia, over 70% of imported food products supplying to whole country are transported through the border at Zamiin-Uud (from a report of food products which were transported through the Zamiin-Uud border: Specialized Inspection Station during 20082009). Due to the current economic crisis and lack of goods produced in Mongolia, the Mongolian Government has collected taxes from both individuals and merchant groups participating in international trade for completing state budget. However, the quality and safety of imported products is left outside the control. Generally, most of the Mongolia people do not have the ability to examine safe and unsafe food products. Only the apparent quantity and price of goods are taken into consideration. Moreover, the inspection control of the Mongolian Border Control has weakened over the past 20 years. To these reasons, Mongolians are unexpected consuming either contaminated or expired food. New research, recently released by the

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Fourier Transform Infrared Spectroscopy Study on Cation adsorption on Viscose Rayon Succinate Khasbaatar Dashkhuu1 and Ung Su Choi2 1

Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Peace avenue 13330, Ulaanbaatar 210351, Mongolia. 2 Energy Mechanics Research Center, Korea Institute of Science and Technology, Seongbuk gu, Hawolgok dong 39-1,Seoul, Korea.

Abstract: Ion-exchange materials have been considered as suitable material for the recovery of heavy metals in water. A viscose rayon succinate, synthesized from viscose rayon and succinic anhydride in presence of DMSO, to remove trace bivalent metal ions such as Ag+, Cu2+, Ni2+, Pb2+, Zn2+ and Cr3+, was studied using FT-IR for the behavior of metal adsorption. Both esterification and carboxyl bonding of viscose rayon succinate were assigned essentially at 1729 and 1693cm -1, respectively. And the essential band of bonding between metal and the material was determined at 1625cm-1. The available adsorption capacity of this fiber was 6.2mequiv/g. The adsorption of metal ions on the viscose rayon succinate follows the order of Cu 2+>Cr3+>Ni2+>Pb2+>Zn2+>Ag+ with maximum adsorptions capacities 4.2, 1.42, 0.91, 0.83, 0.69 and 0.35 mmol/g, respectively. Keywords: chelating fiber, cellulose, viscose rayon, metal adsorption, carboxyl group, FT-IR, pH selectivity

investigated [8-10]. In particular, scientists have intensified many efforts to modify fibers in such a way that inherent fiber properties are preserved [11]. Whereas, most chelating polymers are composed of petroleum-based synthetic polymers [12-14]. Furthermore, the used synthetic chelating polymers often produce on secondary environmental pollution by contaminating the soil or air. In addition, these are usually nonrenewable and nondegradable [14]. Viscose rayon is regenerated from cellulose which has renewability [15] and biodegradability [16] and there is more cellulose on earth than any other organic substance [17]. Cellulose itself has a very low ion exchange capacity [18, 19]. The ionexchange properties of cellulose are similar to other ion exchange resins, but cellulose ion exchangers are more finely divided than

Introduction s the high rate of industrial development in the world, contaminants of heavy metals in wastewater originated from industries are increasing as that influence to the balance of our environment as well as human life. Some cancers and serious diseases may be caused from these metals [1-3]. There are lots of methods including chemical precipitation [4], electrolytic methods [5], and adsorption onto activated carbon [6], membrane process [7], and chelating polymer [8] to reduce the heavy metals in wastewater. More recently, researches have been undertaken to extend to the design of polymeric based ion-exchange fibers for the removal of heavy metals. Several of designs and applications of chelating fibers have received increased attraction and been

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