International Journal of Bio-Technology and Research (IJBTR) ISSN (P):2249–6858; ISSN (E):2249–796X Vol. 10, Issue 1, Jun 2020, 29–40 © TJPRC Pvt. Ltd.
BIOREMEDIATION OF PESTICIDES BY LACCASES USING RECENT APPROACHES: A REVIEW PAIKRAO VIDYA SADASHIVRAO1 & BORKAR PRITA SHAMRAO2 1
School of Life Sciences, Swami Ramanand Teerth Marathwada University, Nanded, Maharashtra, India 2
Department of Microbiology, NES Science College, Nanded, Maharashtra, India
ABSTRACT Agricultural pesticides and herbicides are highly hazardous, and have tendency to bio-accumulate. Their extensive use to meet increasing demand of food crops has resulted in hazardous environmental pollution problems. Bioremediation plays an important role in pesticide degradation. Soil microorganisms are capable of producing various enzymes, amongst whichlaccase enzyme has great pesticide degradation potential. The aim of this review is to focus on recent approaches and applications of laccase in pesticide degradation. KEYWORDS: Laccase, Bioremediation, Applications & Agricultural
INTRODUCTION A wide range of agro-chemicals have been used in developing countries to sustain the food productivity essential for feeding the ever growing population. These agro chemicals, mostly pesticides are used to control pest attacks[1]. In many cases, these compounds are observed to be persistent in nature. On the whole it has
Original Article
Received: Sep 14, 2019; Accepted: Oct 04, 2019; Published: Jan 02, 2020; Paper Id.: IJBTRJUN20203
been observed that the rapid increase in the use of these chemicals have caused considerable damage to the environment.[2] Pesticides have been consistently used for decades with the aim to prevent and reduce pest infestation, safeguard crop yield and maintain the quality of the agricultural produce. The use of pesticides in large scale farming has resulted in a tremendous growth in crop production and in the reduction of vector borne diseases. For example in 1948-49 food grain production was only 50 million tons that has increased to almost fourfold by the end of 1996-97 to 198 million tons from an estimated 169 million hectares of cropped land. The rise in food grain production was because of field application of pesticides, by using high yield varieties of seeds and improved irrigation infrastructure.(91). Similarly an impressive increase in crop yields has been observed in the United States during the twentieth century[3]. On the other hand a considerable amount of applied pesticides fail to reach their desired targets due to their leaching, degradation and volatilization and thus results in serious environmental problems [5]. Although pesticides are useful in containing the pest multiplication and growth, their constant and unregulated application can adversely affect human health, and the entire eco system. Pesticides pose a serious health risk to living organisms on account of their rapid fat solubility and bio-accumulation in non-target organisms[6]. To overcome the above mentioned problems of pesticide application, technologies for pesticide removal in a safe, systematic and economical manner need to be developed and adopted[7]. The existent technologies employ
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