The Effect of Microwave Radiation on the Properties of Canola Seeds

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Mechanics, Materials Science & Engineering, May 2016

ISSN 2412-5954

The Effect of Microwave Radiation on the Properties of Canola Seeds Roudane M. 1, Hemis M. 2 1

Faculty of Technology, University of Blida, Blida, Algeria

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University Djillali Bouamama of Khemis Miliana, Road of Theniat Elhad Ain Defla 44225 Algeria DOI 10.13140/RG.2.1.1679.4488

Keywords: canola seed, MW drying, mathematical modelling, moisture loss, drying rate.

ABSTRACT. The evolution of moisture content loss, which appears during drying of Canola seeds using microwaves radiation (MW) was studied in this work. A mathematical model was adopted to simulate the physical phenomenon of heat and mass transfer between the seeds and the surrounding air. Initial conditions of 20% (w.b.) of moisture content and starting tests was 30%. The drying was down under different MW power from 100 W to 300W. Result show that the predicted moisture loss profiles obtained from the modelling compared well with those obtained experimentally on canola seeds. we were observed also that the drying rate was increased from low to high value of 4.5x10-4 to 8.5x10-4 kg water / (kg wb. S), whilst the MW power increased from 100 to 300W.

1. Introduction. Canadian plant breeders from the University of Manitoba produced in 1974 canola by genetically altering rapeseed. Rapeseed was developed by Canadian plant breeders specifically for its nutritional qualities and its low level of saturated fat. Demand on canola continues to grow as the world learns more about its advantages for human health and as a source of high-quality feed and biofuel feedstock [25]. New research discovery included a new Canola Council study showing a low glycemic-load diet with canola oil helps improve both cholesterol and blood glucose control in Type 2 diabetes patients [25]. The advantage of canola push the world of researchers working on it to develop new methods of drying and storage and of that grains which can use also as new biofuel and a good oil. disease due to its unsaturated fat content, according to supportive but not conclusive research. Canola oil should replace a similar amount of saturated fat in the diet without increasing calories [26]. Global canola production has risen quickly over the past 40 years, it is around 72 Thousand Metric Tons in 2014 [USDA, February 2016 report], increasing from the sixth largest oil crops to the second largest [USDA, 2014]. Spring canola varieties are primarily planted in parts of China, India, and the western prairies of Canada and in the United States. The behaviour of canola seed and rapeseed is similar, because both products have the same morphological, physical and thermal characteristics. Extreme care is needed to safely store rapeseed because high moisture content limit of so-called dry seed which is currently 10%. Canola seeds are less storable under high: temperature, moisture content and oil contents [17]. Storage conditions play essential role in determining canola seed and oil quality. High moisture content or/and high temperature cause damage in the properties of the stored products, causing loss in seed viability and increase levels of free fatty acids (FFA) and products of oxidation in oil [17]. Cassells et al. [17] have presented the moisture isotherms of Australian canola varieties at 20 and

MMSE Journal. Open Access www.mmse.xyz

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