Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus

Straß, Axel; Schink, Bernhard

Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus

Dateien

1986_Strass_37_42.pdfGröße: 879.05 KBDownloads: 611

Datum

1986

Autor:innen

Straß, Axel

Schink, Bernhard

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Applied Microbiology and Biotechnology. 1986, 25(1), pp. 37-42. ISSN 0175-7598. eISSN 1432-0614. Available under: doi: 10.1007/BF00252510

Zusammenfassung

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.
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.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Zitieren

ISO 690

STRASS, Axel, Bernhard SCHINK, 1986. Fermentation of polyethylene glycol via acetaldehyde in Pelobacter venetianus. In: Applied Microbiology and Biotechnology. 1986, 25(1), pp. 37-42. ISSN 0175-7598. eISSN 1432-0614. Available under: doi: 10.1007/BF00252510

BibTex

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

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