Characterization of polychlorinated biphenyl degradation in a fermentor by Comamonas testosteroni strain TK102.
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概要
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The degradation of polychlorinated biphenyls (PCBs) in a 10-liter fermentor by <I>Comamonas testosteroni</I> strain TK102 was investigated. The efficient degradation of 100mg/<I>l</I> Kaneclor 300 by strain TK102 was achieved in 1/3 diluted Luria-Bertani (LB) medium in the absence of biphenyl.Eighty seven percent of Kaneclor 300 was transformed within 72h. This is the first report onthe biodegradation of PCBs in a fermentor. During 24h of incubation, PCBs at the initial concentration of 100mg/<I>l</I> were most efficiently degraded. At the concentration of 150 and 200mg/<I>l</I>, the efficient degradation of PCBs began after a 18-h lag period.
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