Isomerization of butyrate to isobutyrate by Desulforhabdus amnigenus |
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| Authors: | Stefanie JWH Oude Elferink Piet NL Lens Cor Dijkema Alfons JM Stams |
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| Institution: | Department of Microbiology, Wageningen Agricultural University, Hesselink v. Suchtelenweg 4, 6703 CT Wageningen, The Netherlands; Department of Microbiology, University College, Galway, Ireland; Wageningen NMR Centre, Wageningen Agricultural University, Hesselink v. Suchtelenweg 4, 6703 CT Wageningen, The Netherlands |
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| Abstract: | Abstract The isomerization of butyrate and isobutyrate was investigated for the sulfate reducer Desulforhabdus amnigenus . Nuclear magnetic resonance (NMR) studies with 13C-labelled butyrate showed that isobutyrate was formed by migration of the carboxyl group, in conformity with the butyrate isomerization reaction reported for methanogenic consortia. In addition to D. amnigenus , several other butyrate-degrading sulfate reducers ( Desulfobacterium vacuolatum, Desulfoarculus baarsii and Desulfotomaculum sp.) were capable of butyrate isomerization. |
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| Keywords: | Butyrate degradation Volatile fatty acid interconversion 13C-NMR Desulforhabdus amnigenus |
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