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Content Provider | World Health Organization (WHO)-Global Index Medicus |
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Author | Wan, Shungang Zu, Lei Wong, Po Keung An, Taicheng Li, Guiying Mai, Bixian |
Description | Country affiliation: China Author Affiliation: An T ( The State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China. antc99@gig.ac.cn) |
Abstract | A novel bacterium, Ochrobactrum sp. T, capable of simultaneous debromination and aerobic mineralization of tetrabromobisphenol-A (TBBPA), was isolated from a sludge sample collected from an electronic-waste recycling site. The bacterium exhibited maximal debrominase activity at pH 6.5, 35 °C, and 200 rpm in Luria-Bertani culture medium. Initial TBBPA concentration and pH had more significant effects on degradation efficiency than those of temperature and inoculum size. Degradation and debromination efficiencies of 91.8% and 86.7%, respectively, were achieved within 72 h under optimized conditions of 35 °C, pH 7.0, inoculum volume of 25 mL, and TBBPA concentration of 3 mg Lâ »¹. In addition, a 35.6% decrease in total organic carbon was observed after the degradation of 5 mg Lâ »¹ TBBPA for 120 h. Eight metabolic intermediates were identified during the biodegradation of TBBPA. This study is the first report to propose a one-step process for TBBPA debromination and mineralization by a single bacterial strain. |
ISSN | 09608524 |
Issue Number | 19 |
Volume Number | 102 |
e-ISSN | 18732976 |
Journal | Bioresource Technology |
Language | English |
Publisher | Elsevier |
Publisher Date | 2011-10-01 |
Publisher Place | Great Britain (UK) |
Access Restriction | Subscribed |
Subject Keyword | Electronic Waste Halogenation Ochrobactrum Metabolism Polybrominated Biphenyls Biodegradation, Environmental Hydrogen-ion Concentration Molecular Structure Genetics Growth & Development Phylogeny Rna, Ribosomal, 16s Species Specificity Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
Content Type | Text |
Resource Type | Article |
Subject Domain (in MeSH) | Bacteria Organic Chemicals Nucleic Acids, Nucleotides, and Nucleosides Chemical Phenomena Genetic Phenomena Biological Phenomena Environment and Public Health |
Subject | Bioengineering Renewable Energy, Sustainability and the Environment Waste Management and Disposal Environmental Engineering Medicine |
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