Yeast Autolysate

Published on September 3rd, 2015 - Updated August 1, 2016 No Comments
Yeast Autolysate

©Brent Hofacker / Fotolia

What is it?

Yeast Autolysate, also known as Autolysed Yeast or Autolyzed Yeast, wrongly known as Yeast Extract, is a yeast that – in colloquial terms – has being allowed to self-destruct. Yeast Autolysate results from the self digestion of the proteins and other constituents of the yeast by the enzyme contained in the yeast cells. (1). The cell walls are not removed from the Autolysed Yeast resulting in a product which is only partially soluble in water, making it different from Yeast Extract.

The Food Chemical Codex defines Autolysed Yeast as follows: “Autolysed Yeast is the concentrated, not extracted, partially soluble digest obtained from food-grade yeasts. Solubilisation is accomplished by enzyme hydrolysis or autolysis of yeast cells. Autolysed Yeast contains both soluble and insoluble components derived from the whole yeast cell”. (2)


What is it used for?

In Microbiology as a Culture Medium: It’s used to increase the yield of organisms in fermentation broths, especially recommended where rapid growth is required. (3, 4, 5). In 1947 it was reported to have being successfully used as a culture medium for Hemophilus Influenza. (6)

In the Food Industry: Yeast Autolysate is mainly used in the food industry as a flavor enhancer due to its MSG like properties. Although Yeast Autolysate presents similar properties as MSG, it is not MSG. It’s used in the flavoring of snacks, cereals, biscuits, etc. It’s an ingredient in some pet foods. It provides the “meat” like taste on meatless foods. It’s used as a nutrient for certain micro-organisms in the fermentation process of bread and other baked goods.

In the Beer & Wine Industries: In the fermentation of wine, sparkling wines and beers to speed the maturation process and improve the taste of the resulting products. (7, 8, 9)

In Cosmetics: Because of its high levels of proteins, amino-nitrogen and vitamins particularly B-complex, it’s used as a nourishing agent in shampoos, conditioners and cosmetics in general. (10)


What shouldn’t be used for?

Recently some manufacturers of cosmetic products, in particular certified organic cosmetics products, have reported the use of this yeast as a “preservative” in water based products like lotions and creams. Yeast Autolysate is not and cannot be used as a preservative agent. As all yeasts, Yeast Autolysate is responsible for improving microbial activity and growth, instead of diminishing it.

— // —

For more information on Yeast and Yeast Autolysate please visit the following informative links:



A brand with a conscience, always formulating safe products for you, your family and mother earth.

Thursday, September 3rd, 2015  |   permalink  |   Comments  |  
1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)

PERMISSION TO REPRINT: You may not use this article or any portions of it, or any of the images in it, in your print, blog, magazine, email or any other outlet, without written consent.

For educational purposes only This information has not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.

All Images Copyrighted by their respective photographers.

Leave a comment

Your email address will not be published. Required fields are marked *

Comments & Replies require approval before they appear on our blog.
Your IP address is recorded with every comment.
*By commenting on this article you agree to our Comments Policy.

Become a Contributor

Everyone is an expert at something, cooking, health, beauty, enterntainment, politics, the topics are endless!

Write For Us!

Subscribe via Email

Enter your email address below to never miss another article.

Most Visited Articles

For moms & babies


By Valenti Organics. Luxurious. Exotic. All Natural Skincare.

Skin Care

By Valenti Organics. Luxurious. Exotic. All Natural Skincare.

Body Oils

By Valenti Organics. Luxurious. Exotic. All Natural Skincare.

Ambassador Program

Follow us on Twitter


Lisa Vaughan from Baltimore, MD... I use all in the facial system (except haven't tried, but just ordered a clay mask) including the serums and creams. The Lavender products work wonderfully for my--- middle aged skin. This system is by far superior to any I have used prior! I chose Barista, as it's my favorite, but close second is the toner. My face truly thanks you, byvalenti~... Read More Testimonials...
%d bloggers like this: