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Cometabolic degradation of o-cresol and 2,6-dimethylphenol by Penicillium frequentans Bi 7/2

โœ Scribed by Dr. Martin Hofrichter; Friedemann Bublitz; Wolfgang Fritsche

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
567 KB
Volume
35
Category
Article
ISSN
0233-111X

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โœฆ Synopsis

0-Cresol induced glucose-grown resting mycelia of Penicillium frequentans Bi 712 (ATCC-number : 96048) immediately oxidized 0-cresol and other phenols. After precultivation on glucose and phenol degradation started after a lag-phase of 24 hours. Metabolites of o-cresol metabolism were methylhydroquinone, methyl-p-benzoquinone, 2-methyl-5-hydroxyhydroquinone and 2-methyl-5-hydroxy-p-benzoquinone. The initial reaction is probably catalyzed by a NADPH dependent hydroxylase which is specific for 0-cresol. The metabolism of 2,6-dimethylphenol (2,6-xylenol) occurred via 2,6-dimethylhydroquinone, 2,6-dimethyl-p-benzoquinone, 2,6-dimethyl-3-hydroxyhydroquinone, 2,6-dimethyl-3-hydroxy-pbenzoquinone and 3-methyl-2-hydroxybenzoic acid.

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