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Trichloroethylene (TCE) degradation by the recombinant E. coli JM109 harboring a TCE-degradative plasmid (pIO720 or pIO72K) in continuous culture was studied. The ampicillin-resistant plasmid, pIO720, contained the cumene dioxygenase genes and the dimethyl sulfide monooxygenase genes. pIO72K was constructed according to replacement of an ampicillin resistance gene on pIO720 by a kanamycin resistance...
The accumulation of biofilm by Acetobacterium sp. during continuous culture in an upflow anaerobic filter (UAF) growing on methanol-formate was the result of space velocity and inlet concentrations of substrate and Co+2. To achieve good development of biofilm, a space velocity of 0.38 h−1, inlet substrate concentrations of 125 mM of both methanol and formate, and Co+2 at 0.16 mM were required. Cell...
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