Autolyzed yeast extract
A flavoring made from the insides of yeast cells.
It adds savoury, umami taste to packaged foods like snacks, gravy and stock.
Written from English Wikipedia1
What research says
How it’s made and used
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What's still unknown2
Yeast extract is used in animal feed, food flavoring and other products, but its full potential is not yet realized.
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Cooked ham texture3
In cooked hams, 1% spent yeast extract made them firmer and chewier, and this stayed the same during storage.
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Savory taste4
In lab studies, yeast extract was found to contain four peptides that taste umami.
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Salt taste enhancement5
In lab studies, peptides from yeast extract made low-salt water taste more salty and savory.
The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least two findings in people. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.
References
- 1Yeast extract. Wikipedia. Accessed September 26, 2026.
- 2Tao Z, Yuan H, Liu M, et al. Yeast Extract: Characteristics, Production, Applications and Future Perspectives. J Microbiol Biotechnol. 2023;33(2):151-166. doi:10.4014/jmb.2207.07057
- 3Pancrazio G, Cunha SC, de Pinho PG, et al. Spent brewer's yeast extract as an ingredient in cooked hams. Meat Sci. 2016;121:382-389. doi:10.1016/j.meatsci.2016.07.009
- 4Gao C, Yu R, Zhang X, et al. Unraveling novel umami peptides from yeast extract (Saccharomyces cerevisiae) using peptidomics and molecular interaction modeling. Food Chem. 2024;453:139691. doi:10.1016/j.foodchem.2024.139691
- 5Kang Z, He W, Zhu J, et al. Identification of novel saltiness-enhancing peptides in yeast extract and investigation of their mechanism of action. Food Chem. 2025;495(Pt 1):146259. doi:10.1016/j.foodchem.2025.146259