Degradation characteristics and metabolic pathway of 4-nitrophenol by a halotolerant bacterium Arthrobacter sp CN2

文献类型: 外文期刊

第一作者: Wang, Junhuan

作者: Wang, Junhuan;Ren, Lei;Jia, Yang;Ruth, Nahurira;Qiao, Cheng;Yan, Yanchun;Shi, Yanhua

作者机构:

关键词: biodegradation;Arthrobacter sp;CN2;4-Nitrophenol;metabolites;halotolerant

期刊名称:TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY ( 影响因子:1.437; 五年影响因子:1.354 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Arthrobacter sp. strain CN2, capable of degrading 4-nitrophenol, was isolated from activated sludge. Degradation of 4-nitrophenol was optimized at pH 7.7, 30 degrees C, and 0.53% of glucose. Salt tolerance of 4-nitrophenol degradation was as high as 6% (w/v). Several biodegradation intermediates were identified and quantified by high-performance liquid chromatography and mass spectrometry. 4-Nitrocatechol is involved in the degradation of 4-nitrophenol by CN2. Scale-up of 4-nitrophenol degradation was conducted in a bioreactor with different salinity. When the salinity was below 7%, the degradation rate of 4-nitrophenol was above 90% (100mg L-1, 3 L).

分类号: X

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