Factors Influencing Degradation of Carbendazim by Bacillus Pumilus Strain

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外文摘要：The influence of environmental factors on the performance of carbendazim degradation by Baillus pumilus strain NY97-1 was investigated。 For this purpose， experiments were conducted under aerobic conditions， and carbendaczim degradation percentage in culture medium was characterized by high performance liquid chromatography (HPLC) with uv detector。 An initial carbendazim of 10， 30， 50， 100， 300 mg/L were fortified in mineral salt medium(pH 7。0) with the degradation rate of 42。44，48。97，77。19，78。66 and 90。07% were obtained in rearing 24 hrs at 30 ℃。Supplemention with little amount of organic nitrogenous source had a significant effect on the carbendazim degradation， while the inorganic nitrogenous source had negative effect。 Carbendazim degradation rate varied form 61。55% to 87。76% when pH value within the range of 4-10 after addition of organic nitrogen， the lowest carbendazim degradation percentage of 61。55% was obtained on the pH 4。 Carbendazim degradation ability was enhanced with temperature increasing。 Future characterization of strain NY79-1 provides an opportunity for its development in bioremediation of the compound。

外文关键词：

carbendazimdegradationHPLCbacillus pumilusbioremediation

作者：

Rui Hou

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作者单位：

ZHANG Lizhen@College of Life Science and Technology, Shanxi University No.36.Wucheng Road,Taiyuan 030006, Shanxi, China--NIU Wei@Shanxi Academy of Agricultural Sciences, No.2. Wucheng Road, Taiyuan 030031, Shanxi, China--QIAO Xiongwu@Shanxi Key Laboratory of Pesticide Science, Shanxi Academy of Agricultural Sciences, No.64. North Nongke Road, Taiyuan 030031, Shanxi, China--

会议名称：

International Symposium on Environmental Science and Technology;2007 ISEST

会议地点：

Beijing(CN)

会议母体文献：

Progress in Environmental Science and Technology

页码：

1-4

出版时间：

2007