| Issue |
BIO Web Conf.
Volume 191, 2025
The 6th International Conference on Environmentally Sustainable Animal Industry and The 6th Animal Production International Seminar (ICESAI APIS 2025)
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|
|---|---|---|
| Article Number | 00029 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/bioconf/202519100029 | |
| Published online | 20 October 2025 | |
Controlling Rumen Biohydrogenation: Innovation Opportunities in Ruminant Feeding
1 Faculty of Animal Science, Universitas Brawijaya, Malang 65145, Indonesia
2 Faculty of Mathematics and Natural Science, Universitas Brawijaya, Malang 65145, Indonesia
3 Department of Nutrition Science and Feed Technology, Faculty of Animal Husbandry, IPB University, Bogor 16680, Indonesia
* Corresponding author: nurulasari@ub.ac.id
Rumen biohydrogenation converts dietary unsaturated fatty acids (UFA) into saturated fatty acids (SFA), reducing the nutritional value of ruminant‐derived meat and milk. Polyphenol oxidase (PPO) from tropical forages has been proposed as a natural inhibitor of this pathway. In a cross‐ over in vivo trial with three sheep, we compared: (1) negative control (NC, complete feed); (2) positive control (PC, feed + 1 mL linseed oil); and (3) feed + 3 mL PPO emulsion (from Gliricidia sepium). Carcass fat from the thigh and back was analyzed by gas chromatography. PPO treatment increased linoleic acid (C18:2) in thigh fat by 50% vs NC and 157% vs PC, while stearic acid (C18:0) decreased by 76% vs NC and 22% vs PC. Back‐ fat linoleic acid rose by 12.5% (NC) and 42.9% (PC), and stearic acid fell by 76.2% and 11.5%, respectively. These findings demonstrate that PPO emulsion effectively protects UFAs from rumen biohydrogenation, yielding a healthier fatty acid profile in sheep meat. The use of plant‐derived PPO as a feed additive presents a promising strategy for producing functional ruminant products and mitigating SFA‐related health risks.
Key words: biohydrogenation / rumen / unsaturated fatty acids / polyphenol oxidase / functional feed / ruminant nutrition
© The Authors, published by EDP Sciences, 2025
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