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KMID : 1024519980070010052
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Journal of the Environmental Sciences
1998 Volume.7 No. 1 p.52 ~ p.56
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Inhibition of Acetylcholinesterase Activity on the Organophosphorus and Carbamate Pesticides
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Kim Jung-Ho
Kim Young-Ho
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Abstract
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The effects of organophosphorus and carbamate pesticides were examined inhibition of the acetylcholinesterase activity in the chicken brain with enzyme-inhibition methods. The acetylcholinesterase activity in chicken brain determined by the Ellman method was 167 mmol/min/g protein. The optimum pH of acetycholinesterase was 8.2. of acetycholinesterase by some organophosphorus were 3.80M of phosphorodlthioate, 4.04M of phosphorothioate, 6.33M of phosphate, and 6.60M of phosphrothiolate. pluto of acetycholinesterase by some carbamates were 5.1 OM of XMC, 5. 90M of carbofuran, 6.16M of isoprocarb, 6.30M of carbaryl, 6.47M of BPMC, and 6.77M of propoxur. pluto of carbamates selected was similar to that of phosphorothioate and phosphate organophosphates.
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KEYWORD
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Acetylcholinesterase, Organophosphorus pesticides, Enzyme-inhibition
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