Cited by 300Ruminant Nutrition and Digestive PhysiologyFatty Acid Research and HealthMeat and Animal Product Quality

Toxicity of unsaturated fatty acids to the biohydrogenating ruminal bacterium, Butyrivibrio fibrisolvens

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Maia, Margarida RG, Chaudhary, Lal C, Bestwick, Charles S, Richardson, Anthony J, McKain, Nest, Larson, Tony R, Graham, Ian A, Wallace, Robert J·2010·BMC Microbiology

Abstract

BACKGROUND: Health-promoting polyunsaturated fatty acids (PUFA) are abundant in forages grazed by ruminants and in vegetable and fish oils used as dietary supplements, but only a small proportion of PUFA finds its way into meat and milk, because of biohydrogenation in the rumen. Butyrivibrio fibrisolvens plays a major role in this activity. The aim of this study was to investigate the mechanisms by which PUFA affect the growth of B. fibrisolvens, how PUFA are metabolized and the metabolic response to growth in the presence of PUFA. RESULTS: Linoleic acid (LA; cis-9, cis-12-18:2) and alpha-linolenic acid (LNA; cis-9, cis-12, cis-15-18:3) increased the lag phase of B. fibrisolvens JW11, LNA having the greater effect. Growth was initiated only when the PUFA had been converted to vaccenic acid (VA; trans-11-18:1). The major fish oil fatty acids, eicosapentaenoic acid (EPA; 20:5(n-3)) and docosahexaenoic acid (DHA; 22:6(n-3)), were not metabolized and prevented growth. Cellular integrity, as determined fluorimetrically by propidium iodide (PI) ingression, was affected as much by 18:1 fatty acids, including VA, as 18:2 fatty acids. The methyl esters of LNA, LA, EPA and DHA had no effect on growth or other measurements. The ATP pool decreased by 2/3 when LA was added to growing bacteria, whereas most acyl CoA pools decreased by >96%. CONCLUSIONS: It was concluded that biohydrogenation occurs to enable B. fibrisolvens to survive the bacteriostatic effects of PUFA, and that the toxicity of PUFA is probably mediated via a metabolic effect rather than disruption of membrane integrity.

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Crossref · 10.1186/1471-2180-10-52

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  • Rumen microbiota can detoxify unsaturated FA through the biohydrogenation process to reduce/eliminate the adverse effects on rumen fermentation.

    “However, rumen microbiota can detoxify unsaturated FA through the biohydrogenation process to reduce/eliminate the adverse effects on rumen fermentation (121, 124).”

    From Phytogenic Additives Can Modulate Rumen Microbiome to Mediate Fermentation Kinetics and Methanogenesis Through Exploiting Diet–Microbe Interaction (2020) · cites this paper as [124]

    The Discussion (page unavailable) describes biohydrogenation as a detoxification mechanism, and the Abstract says it enables Butyrivibrio fibrisolvens to survive the bacteriostatic effects of some polyunsaturated fatty acids. The claim extends this finding to rumen microbiota and adverse effects on rumen fermentation generally. The Abstract also reports that EPA and DHA were not metabolized and prevented growth, so the paper does not support detoxification of unsaturated fatty acids without qualification. (LLM, conf=0.88)

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Research works printed but not linked: 3

  1. Hungate RE Norris JR, Ribbons DW A roll tube method for cultivation of strict anaerobes Methods in Microbiology 1969 3B London: Academic Press 117 132 full_text
  2. Hobson PN Norris JR, Ribbons DW Rumen bacteria Methods in Microbiology 1969 3B London: Academic Press 133 139 full_text
  3. Herbert D Phipps PJ Strange RE Norris JR, Ribbons DW Chemical analysis of microbial cells Methods in Microbiology 1971 5B London: Academic Press 209 344 full_text

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Authors
Maia, M. R., Chaudhary, L. C., Bestwick, C. S., Richardson, A. J., McKain, N., Larson, T. R., Graham, I. A., & Wallace, R. J.
Affiliations
  • University of Aberdeen (GB)
  • University of York (GB)
Corresponding author
Wallace, Robert J
Venue
BMC Microbiology
Published
2010-02-18
Volume
10
Issue
1
Pages
52-52
ISSN
1471-2180 (ISSN-L)
OpenAlex
W2162688963
Cited by
298
References
50
Citations by year
2026: 16 · 2025: 16 · 2024: 16 · 2023: 25 · 2022: 21 · 2021: 25 · 2020: 22 · 2019: 21 · 2018: 20 · 2017: 18 · 2016: 21 · 2015: 20 · 2014: 22 · 2013: 11 · 2012: 13
FWCI
23.75
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BMC Microbiology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Aberdeen University Research Archive (Aberdeen University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Scottish Government
  • Fundação para a Ciência e a Tecnologia
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Meat and Animal Product Quality
Keywords
polyunsaturated fatty acids, Butyrivibrio fibrisolvens, biohydrogenation, rumen bacteria, linoleic acid, alpha-linolenic acid, vaccenic acid, eicosapentaenoic acid, docosahexaenoic acid, fish oil, bacterial growth inhibition, membrane integrity, ATP depletion, fatty acid metabolism
MeSH terms
Acyl Coenzyme A, Adenosine Triphosphate, Animals, Cell Membrane, Culture Media, Fatty Acids, Unsaturated, Flow Cytometry, Hydrogenation, Sheep, Sodium Lactate, Linoleic Acid, Butyrivibrio, Lipid Metabolism

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