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Bisphenol A Degradation by Bacteria Isolated from River Water

机译：从河水中分离出的细菌降解双酚A

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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°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）生物降解性的细菌在河水中的分离和特性，并确定在有氧和厌氧条件下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°C下10天的BPA降低（小于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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    J.-H. Kang; F. Kondo;

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    Department of Veterinary Public Health Faculty of Agriculture Miyazaki University Kibanadai-Nishi Gakuen Miyazaki-shi 889-2192 Japan;

    Department of Veterinary Public Health Faculty of Agriculture Miyazaki University Kibanadai-Nishi Gakuen Miyazaki-shi 889-2192 Japan;

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