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Effects of capric acid on rumen methanogenesis and biohydrogenation of linoleic and alpha-linolenic acid

(2009) ANIMAL. 3(6). p.810-816
Author
Organization
Abstract
Capric acid (00:0), a medium chain fatty acid, was evaluated for its anti-methanogenic activity and its potential to modify the rumen biohydrogenation of linoleic (C18:2n-6) and alpha-linolenic acids (083n-3). A standard dairy concentrate (0.5 g), supplemented with sunflower oil (10 mg) and linseed oil (10 mg) and increasing doses of capric acid (0, 10, 20 and 30 mg), was incubated with mixed rumen contents and buffer (1: 4 v/v) for 24 h. The methane inhibitory effect of capric acid was more pronounced at the highest (30 mg) dose compared to the medium (20 mg) (-85% v. -34%), whereas the lower dose (10 mg) did not reduce rumen methanogenesis. A 23% decrease in total short-chain fatty acid (SCFA) production was observed, accompanied by shifts towards increased butyrate at 20 mg and increased propionate at 30 mg of capric acid (P < 0.001). Capric acid linearly decreased the extent of biohydrogenation of C18:2n-6 and C18:3n-3, by up to 60% and 86%, respectively. This reduction was partially due to a lower extent of lipolysis when capric acid was supplemented. Capric acid at 20 and 30 mg completely inhibited the production of C18:0 (P < 0.001), resulting in an accumulation of biohydrogenation intermediates, mainly 08:1110 + t11 and C18:2t11c15. In contrast to effects on rumen fermentation (methane production and proportions of SCFA), 30 mg of capric acid did not induce major changes in rumen biohydrogenation as compared to the medium (20 mg) dose. This study revealed the dual action of capric acid, being inhibitory to both methane production and biohydrogenation of C18:2n-6 and C18:3n-3.
Keywords
RELEASE, DIGESTION, SUPPLEMENTATION, FERMENTATION, MYRISTIC ACID, METHANE PRODUCTION, IN-VITRO EXAMINATION, CHAIN FATTY-ACIDS, FISH OILS, LIPOLYSIS, methane, biohydrogenation, rumen fermentation, capric acid

Citation

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MLA
Goel, Gunjan, et al. “Effects of Capric Acid on Rumen Methanogenesis and Biohydrogenation of Linoleic and Alpha-Linolenic Acid.” ANIMAL, vol. 3, no. 6, 2009, pp. 810–16.
APA
Goel, G., Arvidsson, K., Vlaeminck, B., Bruggeman, G., Deschepper, K., & Fievez, V. (2009). Effects of capric acid on rumen methanogenesis and biohydrogenation of linoleic and alpha-linolenic acid. ANIMAL, 3(6), 810–816.
Chicago author-date
Goel, Gunjan, K Arvidsson, Bruno Vlaeminck, G Bruggeman, K Deschepper, and Veerle Fievez. 2009. “Effects of Capric Acid on Rumen Methanogenesis and Biohydrogenation of Linoleic and Alpha-Linolenic Acid.” ANIMAL 3 (6): 810–16.
Chicago author-date (all authors)
Goel, Gunjan, K Arvidsson, Bruno Vlaeminck, G Bruggeman, K Deschepper, and Veerle Fievez. 2009. “Effects of Capric Acid on Rumen Methanogenesis and Biohydrogenation of Linoleic and Alpha-Linolenic Acid.” ANIMAL 3 (6): 810–816.
Vancouver
1.
Goel G, Arvidsson K, Vlaeminck B, Bruggeman G, Deschepper K, Fievez V. Effects of capric acid on rumen methanogenesis and biohydrogenation of linoleic and alpha-linolenic acid. ANIMAL. 2009;3(6):810–6.
IEEE
[1]
G. Goel, K. Arvidsson, B. Vlaeminck, G. Bruggeman, K. Deschepper, and V. Fievez, “Effects of capric acid on rumen methanogenesis and biohydrogenation of linoleic and alpha-linolenic acid,” ANIMAL, vol. 3, no. 6, pp. 810–816, 2009.
@article{718667,
  abstract     = {Capric acid (00:0), a medium chain fatty acid, was evaluated for its anti-methanogenic activity and its potential to modify the rumen biohydrogenation of linoleic (C18:2n-6) and alpha-linolenic acids (083n-3). A standard dairy concentrate (0.5 g), supplemented with sunflower oil (10 mg) and linseed oil (10 mg) and increasing doses of capric acid (0, 10, 20 and 30 mg), was incubated with mixed rumen contents and buffer (1: 4 v/v) for 24 h. The methane inhibitory effect of capric acid was more pronounced at the highest (30 mg) dose compared to the medium (20 mg) (-85% v. -34%), whereas the lower dose (10 mg) did not reduce rumen methanogenesis. A 23% decrease in total short-chain fatty acid (SCFA) production was observed, accompanied by shifts towards increased butyrate at 20 mg and increased propionate at 30 mg of capric acid (P < 0.001). Capric acid linearly decreased the extent of biohydrogenation of C18:2n-6 and C18:3n-3, by up to 60% and 86%, respectively. This reduction was partially due to a lower extent of lipolysis when capric acid was supplemented. Capric acid at 20 and 30 mg completely inhibited the production of C18:0 (P < 0.001), resulting in an accumulation of biohydrogenation intermediates, mainly 08:1110 + t11 and C18:2t11c15. In contrast to effects on rumen fermentation (methane production and proportions of SCFA), 30 mg of capric acid did not induce major changes in rumen biohydrogenation as compared to the medium (20 mg) dose. This study revealed the dual action of capric acid, being inhibitory to both methane production and biohydrogenation of C18:2n-6 and C18:3n-3.},
  author       = {Goel, Gunjan and Arvidsson, K and Vlaeminck, Bruno and Bruggeman, G and Deschepper, K and Fievez, Veerle},
  issn         = {1751-7311},
  journal      = {ANIMAL},
  keywords     = {RELEASE,DIGESTION,SUPPLEMENTATION,FERMENTATION,MYRISTIC ACID,METHANE PRODUCTION,IN-VITRO EXAMINATION,CHAIN FATTY-ACIDS,FISH OILS,LIPOLYSIS,methane,biohydrogenation,rumen fermentation,capric acid},
  language     = {eng},
  number       = {6},
  pages        = {810--816},
  title        = {Effects of capric acid on rumen methanogenesis and biohydrogenation of linoleic and alpha-linolenic acid},
  url          = {http://dx.doi.org/10.101/S1751731109004352},
  volume       = {3},
  year         = {2009},
}

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