Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus


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STRASS, Axel, Bernhard SCHINK, 1986. Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus. In: Applied Microbiology and Biotechnology. 25(1), pp. 37-42. ISSN 0175-7598. eISSN 1432-0614

@article{Stra1986Ferme-8182, title={Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus}, year={1986}, doi={10.1007/BF00252510}, number={1}, volume={25}, issn={0175-7598}, journal={Applied Microbiology and Biotechnology}, pages={37--42}, author={Straß, Axel and Schink, Bernhard} }

eng Schink, Bernhard 2011-03-24T17:41:14Z deposit-license 2011-03-24T17:41:14Z Straß, Axel Schink, Bernhard Pelobacter venetianus, a strictly anaerobic bacterium recently isolated with polyethylene glycol (PEG) as substrate, ferments PEG's with molecular masses of 106--40000, as well as acetoin, ethanolamine, choline, and ethoxyethanol, to acetate and ethanol. Ethylene glycol (EG) and acetaldehyde were fermented in the same manner at limiting concentrations in continuous culture. Growth with glycolaldehyde led to acetate as sole fermentation product. Acetaldehyde appeared as byproduct of PEG fermentation, and accumulated to high concentrations during degradation of PEG 4000 and PEG 6000. Utilization of PEG's was constitutive, whereas acetoin degradation was inducible, Acetaldehyde was shown to be the primary product of EG degradation, and inhibited utilization of other substrates.<br />Enzymes involved in the fermentation of PEG, EG, acetoin, and glycolaldehyde were demonstrated in cell-free extracts, except for the PEG degrading enzyme and EG dehydrase. These results demonstrate that acetaldehyde plays a central role in the metabolism of Pelobacter venetianus. A scheme of intermediary metabolism and PEG degradation is discussed. application/pdf Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus First publ. in: Applied Microbiology and Biotechnology 25 (1986), 1, pp. 37-42 1986 Straß, Axel

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