Abstract
Catechol was found to be a common intermediate in the degradation of benzene and toluene byAlcaligenes xyhsoxidans Y234, and the ring cleavage of the catechol mediated by catechol 1,2-dioxygenase was a rate-determining step. Since benzene induced higher level of catechol 1,2-dioxygenase than toluene, the cells pre-adapted to benzene showed higher degradation rate of benzene and toluene. The degradation rate ofm-xylene was also increased significantly when benzene-adapted cells were inoculated.m-Xylene was metabolized via 3-methyl catechol which was effectively cleaved by catechol 1,2-dioxygenase.
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Yeom, SH., Yoo, YJ. Analysis of microbial adaptation at enzyme level for enhancing biodegradation rate of BTX. Korean J. Chem. Eng. 19, 780–782 (2002). https://doi.org/10.1007/BF02706967
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DOI: https://doi.org/10.1007/BF02706967