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  • biodegradation of tetrabromobisphenol a by a novel comamonas sp. strain, jxs-2-02, isolated from anaerobic sludge

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 629
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a bacterial strain able to rapidly degrade tetrabromobisphenol a (tbbpa), jxs-2-02, was isolated from anaerobic sludge that had been successfully enrichment by adding tbbpa for 240 days. jxs-2-02 can use tbbpa as the sole carbon and energy source for growth in mineral salt medium. based on morphology, biochemical characteristics and 16s rdna sequence analysis, jxs-2-02 was identified as comamonas sp.. under the optimal conditions (ph 7.0, a temperature of 30 °c and an inoculum of 1% od600 = 0.6), more than 86% of the initial tbbpa (0.5 mg l−1) was degraded after 10 d. a tbbpa biodegradation pathway was proposed on the basis of the metabolite production patterns and the identification of the metabolites by gc–ms analysis. this study is the first report to isolate a single tbbpa-degrading bacterial strain under anaerobic conditions for tbbpa debromination and detoxification.

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