Biodegradation of tetrabromobisphenol A by a novel Comamonas sp. strain, JXS-2-02, isolated from anaerobic sludge
| Autor: | Xingxing Peng, Zaili Zhang, Weishi Luo, Xiaoshan Jia |
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| Rok vydání: | 2012 |
| Předmět: |
Environmental Engineering
Metabolite Polybrominated Biphenyls Bioengineering Microbiology chemistry.chemical_compound Bacteria Anaerobic Species Specificity Waste Management and Disposal Comamonas Chromatography Strain (chemistry) biology Sewage Renewable Energy Sustainability and the Environment Chemistry General Medicine Biodegradation biology.organism_classification Biodegradation Environmental Tetrabromobisphenol A Environmental Pollutants Energy source Anaerobic exercise Bacteria |
| Zdroj: | Bioresource technology. 128 |
| ISSN: | 1873-2976 |
| Popis: | 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% OD(600) = 0.6), more than 86% of the initial TBBPA (0.5 mg L(-1)) was degraded after 10d. 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. |
| Databáze: | OpenAIRE |
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