1887

Abstract

Degradation of butyl benzyl phthalate (BBP) by a co-culture of sp. strain MTCC 4818 and sp. strain WY was investigated. In the degradation of BBP by the co-culture, the limitations of the individual species in metabolizing BBP were overcome, leading to the development of a consortium capable of complete utilization of this ester. In the degradation of BBP by the co-culture, the presence of multiple esterases was demonstrated in both species by activity staining of non-denaturing gels, indicating their roles in the degradation process. The esterases were found to be inducible, with unique or broad substrate specificities towards BBP and its monoesters. Moreover, a number of catabolic enzymes other than esterases identified in the metabolism of BBP-degraded intermediates facilitated the co-culture-mediated degradation process. The versatility of the co-culture was further established by the rapid and complete degradation of a mixture of phthalate esters of environmental concern.

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2008-11-01
2019-11-13
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