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KMID : 0545119980080030222
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Journal of Microbiology and Biotechnology
1998 Volume.8 No. 3 p.222 ~ p.228
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Cometabolic Removal of Xylene Isomers by Alcaligenes xylosoxidans Y234
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Yeom, Sung Ho
Lee, Jung Heon/Yoo, Young Je
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Abstract
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The characteristics of cometabolic removal of xylenes by Alcaligenes xylosoxidans Y234 were investigated. m-Xylene was found to be degraded while o- and p-xylene were biotransformed into cresols in the presence of benzene or toluene. A lower level of benzene was required than that of toluene to remove the same amount of xylenes, which suggested benzene was a more effective primary substrate than toluene. o-Xylene was found to be the most toxic to Alcaligenes xylosoxidans Y234 followed by p-xylene and m-xylene. Rates of cell decay during cometabolic removal of o-, m-, or p-xylene were decreased by up to 76% when benzene-adapted cells were inoculated. Xylenes were removed efficiently using benzene-adapted cells.
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