Degradation of dibenzothiophene by Brevibacterium sp.DO

Dibenzothiophene, a polycyclic aromatic sulfur heterocycle, represents as a model compound the organic sulfur integrated in the macromolecular coal matrix. A pure culture of a Brevibacterium species was isolated, which is able to use dibenzothiophene as sole source of carbon, sulfur and energy for g...

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Veröffentlicht in:Archives of microbiology 1990-03, Vol.153 (4), p.324-328
Hauptverfasser: VAN AFFERDEN, M, SCHACHT, S, KLEIN, J, TRUÊPER, H. G
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Sprache:eng
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Zusammenfassung:Dibenzothiophene, a polycyclic aromatic sulfur heterocycle, represents as a model compound the organic sulfur integrated in the macromolecular coal matrix. A pure culture of a Brevibacterium species was isolated, which is able to use dibenzothiophene as sole source of carbon, sulfur and energy for growth. During dibenzothiophene utilization sulfite was released in a stoichiometrical amount and was further oxidized to sulfate. Three metabolites of dibenzothiophene degradation were isolated and identified as dibenzothiophene-5-oxide, dibenzothiophene-5-dioxide and benzoate by cochromatography, UV spectroscopy and gas chromatography-mass spectrometry analyses. Based on the identified metabolites a pathway for the degradation of dibenzothiophene by Brevibacterium sp.DO is proposed.
ISSN:0302-8933
1432-072X
DOI:10.1007/BF00249000