Cited by 28Microbial bioremediation and biosurfactantsAnaerobic Digestion and Biogas ProductionEnvironmental Chemistry and Analysis

The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.

Anaerobic biodegradation of vegetable oil and its metabolic intermediates in oil-enriched freshwater sediments

Abstract

Anaerobic biodegradation of vegetable oil in freshwater sediments is strongly inhibited by high concentrations of oil, but the presence of ferric hydroxide relieves the inhibition. The effect of ferric hydroxide is not due to physical or chemical interactions with long-chain fatty acids (LCFAs) that are produced as intermediates during metabolism of vegetable-oil triglycerides. The anaerobic biodegradation of canola oil and mixtures of acetic and oleic acids, two important intermediates of vegetable-oil metabolism, were investigated using sediments enriched on canola oil under methanogenic and iron-reducing conditions to determine whether the effect of ferric hydroxide has a biological basis. Sediments enriched under both conditions rapidly and completely converted canola oil to methane when the initial oil concentration was relatively low (1.9 g oil/kg sediments), but the biotransformation was strongly inhibited in sediments enriched under methanogenic conditions when the initial concentration was 19 g/kg (< 30% of the oil-derived electron equivalents were transferred to methane in a 420-day incubation period). Sediments enriched under iron-reducing conditions, however, completely transformed canola oil to methane in about 250 days at this initial oil concentration. The anaerobic biotransformation of mixtures of acetate and oleic acid followed a similar pattern: the rate and extent of conversion of these electron-donor substrates to methane was always higher in sediments enriched under iron-reducing than under methanogenic conditions. These results suggest that enrichment on canola oil in the presence of ferric hydroxide selects a microbial community that is less sensitive to inhibition by LCFAs than the community that develops during enrichment under methanogenic conditions.

Overview

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Crossref · 10.1007/s10532-004-2057-6

Cites

37 of 37 references verified0 citation errors · 0 not checkable

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Research works printed but not linked: 4

  1. CS Hwu, 1996, Water Sci. Tech., 34, 351
  2. DR Lovley, 2000, The Prokaryotes, Release 3.4
  3. MJ McInerney, 1988, Biology of Anaerobic Microorganisms (pp, 373
  4. HBW Patterson, 1989, Handling and Storage of Oilseeds

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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)
Corresponding author
Wrenn, Brian A.
Venue
Biodegradation
Published
2005-08
Volume
16
Issue
4
Pages
341-352
ISSN
  • 0923-9820 (ISSN-L)
  • 1572-9729
OpenAlex
W1994577816
Cited by
28
References
37
Citations by year
2024: 1 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2018: 2 · 2016: 1 · 2015: 2 · 2014: 1 · 2013: 1 · 2012: 3
FWCI
1.70
Type
journal article
Language
en
Open access
closed
Locations
  • Biodegradation (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
Keywords
anaerobic biodegradation, vegetable oils, canola oil, ferric hydroxide, long-chain fatty acids, metabolic intermediates, acetic acid, oleic acid, methanogenic conditions, iron-reducing conditions, freshwater sediments, oil enrichment, microbial community selection, methane production
MeSH terms
Rapeseed Oil, Anaerobiosis, Biodegradation, Environmental, Fatty Acids, Monounsaturated, Ferric Compounds, Fresh Water, Kinetics, Methane, Plant Oils, Water Pollutants, Chemical, Ecosystem, Geologic Sediments

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