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Fermentative degradation of nonionic surfactants and polyethylene glycol by enrichment cultures and by pure cultures of homoacetogenic and propionate-forming bacteria

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1988

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Wagener, Stefan

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Applied and Environmental Microbiology. 1988, 54(2), pp. 561-565

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Linear alkyl ethoxylates (polyethylene glycol alkyl ethers) were fermented completely to methane and CO2 in enrichment cultures inoculated with anoxic sewage sludge. Long-chain fatty acids were released as intermediates. No degradation was found with polypropylene glycol and polypropylene glycol-containing surfactants. Two types of primary ethoxylate-degrading bacteria were isolated and characterized. Both degraded polyethylene glycols with molecular weights of 1,000 completely. Strain KoB35 fermented polyethylene glycol, ethoxyethanol, and lactate to acetate and propionate and was assigned to the described species Pelobacterpropionicus. Strain KoB58 converted polyethylene glycol and many other substrates to acetate only and was assigned to the genus Acetobacterium. The pathways of anaerobic degradation of nonionic surfactants are discussed with respect to their limitations and the various groups of bacteria involved.

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570 Biowissenschaften, Biologie

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ISO 690WAGENER, Stefan, Bernhard SCHINK, 1988. Fermentative degradation of nonionic surfactants and polyethylene glycol by enrichment cultures and by pure cultures of homoacetogenic and propionate-forming bacteria. In: Applied and Environmental Microbiology. 1988, 54(2), pp. 561-565
BibTex
@article{Wagener1988Ferme-7992,
  year={1988},
  title={Fermentative degradation of nonionic surfactants and polyethylene glycol by enrichment cultures and by pure cultures of homoacetogenic and propionate-forming bacteria},
  number={2},
  volume={54},
  journal={Applied and Environmental Microbiology},
  pages={561--565},
  author={Wagener, Stefan and Schink, Bernhard}
}
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