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首页> 外文期刊>Archives of Environmental Contamination and Toxicology >Bisphenol a degradation by bacteria isolated from river water.
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Bisphenol a degradation by bacteria isolated from river water.

机译:双酚被从河水中分离出的细菌降解。

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摘要

Recently, there is increasing interest in the microbial degradation of endocrine disruptors. This study was conducted to show the isolation and property of bacteria having bisphenol A (BPA) biodegradability in river water and to identify the difference of BPA degradation under aerobic and anaerobic conditions. Three river water samples spiked with BPA (1 mg/L) were rapidly degraded under aerobic conditions. The half-life for BPA degradation ranged from 2 to 3 days, and BPA was below detection limit (less than 0.005 mg/L) on the 10th day. But a decrease of BPA under anaerobic conditions was hardly identified at 30 degrees C for 10 days (less than 10%). Also, most bacteria (10 out of 11) isolated from three river waters had BPA biodegradability, but there were differences in removal rates of BPA (18% to 91%). Moreover, two strains that had high BPA biodegradability (about 90%) were identified as a Pseudomonas sp. and a Pseudomonas putida strain.
机译:最近,人们对内分泌干扰物的微生物降解越来越感兴趣。进行这项研究以显示具有双酚A(BPA)生物降解能力的细菌在河水中的分离和特性,并确定在好氧和厌氧条件下BPA降解的差异。在有氧条件下,三份掺有BPA(1 mg / L)的河水样品迅速降解。 BPA降解的半衰期为2至3天,第10天BPA低于检测极限(小于0.005 mg / L)。但是,几乎没有发现在厌氧条件下在30摄氏度下10天BPA降低(少于10%)。另外,从三个河水中分离出的大多数细菌(11个中的10个)具有BPA可生物降解性,但是BPA的去除率存在差异(18%至91%)。此外,鉴定出具有高BPA生物降解性的两种菌株(约90%)为假单胞菌。和恶臭假单胞菌菌株。

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