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底i尼(Sediment}에서 分離된 微生物에 依한 Carbaryl (l-naphthyl-N -methylcarbamate) 의 購氣的 分解에 關한 硏究
두옥주(Ock Joo Du),정문호(Moon Ho Chug) 한국환경보건학회 1990 한국환경보건학회지 Vol.16 No.2
Carbaryl was degradaded to monomethylamine(MA) by bacterium. which isolated from lake sedi. ment. Its carbaryl degradation was maximized when grown on mineral salt medium conditioning 20 þ.M of carbaryl as a sole carbon source at 26t and initial pH ï.0-9.0 Its degradation ability was minimized at initial pH 3.0 and 5.0 The percent cαlversions I (moles of MA in excess of control / mole of carbaryl added) X 100 I for 10‘ 20.40 and 80 μM of carbaryl were 18.6. 16. 1. 18.1 and 1l.6 respectively. It :5uggests that increasing amount of carbaryl added above 80 Þ. M. the percent conversion should be decreased. The MA production by the bacterium was lineary related to the cultural time‘After 7days culture. its percent conversion was 46.2‘ and this result suggests that a half amount of carbaryl would be hydrolyzed to MA by the bacterium within 8 davs