Cited by 12Anaerobic Digestion and Biogas ProductionMicrobial Fuel Cells and BioremediationMethane Hydrates and Related Phenomena

The DOI matches its Crossref record; 30 of the 31 references it cites were found in a registry or an index.

Effect of iron on the sensitivity of hydrogen, acetate, and butyrate metabolism to inhibition by long-chain fatty acids in vegetable-oil-enriched freshwater sediments

Abstract

Freshwater sediment microbial communities enriched by growth on vegetable oil in the presence of a substoichiometric amount of ferric hydroxide (sufficient to accept about 12% of the vegetable-oil-derived electrons) degrade vegetable oil to methane faster than similar microbial communities that develop when sediments are enriched by growth on vegetable oil in the absence of ferric hydroxide. This study examined the effects of enrichment in the presence of Fe(III) on the fatty-acid sensitivity of several important members of anaerobic triglyceride-degrading microbial communities in freshwater sediments. The fatty-acid sensitivity of three groups of microorganisms-hydrogenotrophic methanogens, acetate consumers, and hydrogen-producing acetogens-were investigated by comparing the rates of hydrogen, acetate, or butyrate consumption in the presence and absence of oleic acid. Methanogenesis from hydrogen was not affected by sediment enrichment conditions or by the presence of oleic acid, suggesting that hydrogenotrophic methanogens were insensitive to fatty acid inhibition in these sediments. Oleic acid inhibited the anaerobic degradation rates of acetate and butyrate by 38% and 63%, respectively, but enrichment in the presence of Fe(III) eliminated the fatty-acid sensitivity of acetate degradation and reduced the sensitivity of butyrate degradation by about half. These results suggest that iron-reducing bacteria may provide an alternative pathway through which vegetable oil can be converted to methane in anaerobic freshwater sediments.

Overview

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Registry

Crossref · 10.1016/j.watres.2005.05.021

Cites

30 of 30 references verified0 citation errors · 0 not checkable

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Metadata

Authors
Li, Z., Wrenn, B. A., & Venosa, A. D.
Affiliations
  • Washington University in St. Louis (US)
  • Environmental Protection Agency (US)
Venue
Water Research
Publisher
Elsevier BV
Published
2005-08
Volume
39
Issue
13
Pages
3109-3119
ISSN
0043-1354 (ISSN-L)
OpenAlex
W2018315183
Cited by
12
References
31
Citations by year
2026: 1 · 2021: 1 · 2020: 3 · 2015: 1 · 2013: 1
FWCI
0.30
Type
journal article
Language
en
Open access
closed
Locations
  • Water Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
  • Physical Sciences › Environmental Science › Environmental Chemistry › Methane Hydrates and Related Phenomena
Keywords
ferric hydroxide, iron reduction, oleic acid, hydrogenotrophic methanogens, acetate degradation, butyrate degradation, acetogenic bacteria, freshwater sediments, methane production, iron-reducing bacteria
MeSH terms
Rapeseed Oil, Acetates, Bacteria, Anaerobic, Biodegradation, Environmental, Butyrates, Fatty Acids, Monounsaturated, Ferric Compounds, Fresh Water, Hydrogen, Methane, Waste Disposal, Fluid, Geologic Sediments, Oleic Acid

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