Product formation from thiophene by a mixed bacterial culture. Influence of benzene as growth substrate

Isabelle Marie Rivas, Hans Mosbæk, Erik Arvin

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The influence of benzene as a growth substrate on the cometabolic conversion of thiophene was investigated in batch systems with microorganisms originating from an creosote contaminated site. Benzene was shown to stimulate the conversion of thiophene with a first-order rate, during the initial phase of transformation. The microorganisms were able to transform thiophene in the absence of benzene at a zero-order rate. Thiophene was converted to five oxidation products, regardless of the presence of benzene. Benzene had no influence on the distribution of these oxidation products. The main oxidation product, a thiophene sulphoxide dimer, represented 78+/-12% of the transformed thiophene, while the second most important product, also a thiophene sulphoxide dimer, represented 20+/-2% of the converted thiophene. (C) 2003 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
JournalWater Research
Volume37
Issue number12
Pages (from-to)3047-3053
ISSN0043-1354
DOIs
Publication statusPublished - 2003

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