What is yeast hydrolysate

Yeast hydrolysate is the hydrolysis product of yeast cells. Here is a detailed introduction about it:

ⅠOne Production method:

      1. Autolysis method: Using the enzyme system contained in yeast itself, under certain conditions (such as appropriate temperature, pH value, time, etc.), substances inside yeast cells undergo hydrolysis reactions, thereby decomposing yeast cells into small molecule substances. However, this method has a longer production cycle and is prone to contamination by miscellaneous bacteria, which affects product quality.

      2. External enzymatic hydrolysis method: Specific enzyme preparations, such as proteases, nucleases, etc., are added to yeast cell suspensions. These enzymes can specifically decompose large molecular substances such as proteins and nucleic acids in yeast cells, converting them into small molecular substances such as amino acids and nucleotides. This method has high production efficiency and stable product quality, and is currently a commonly used production method.

II Main components:

      1. Nucleotides: Yeast is rich in ribose, and the proportion of RNA it contains varies from 3% to 15% depending on the yeast species. Single nucleotides obtained from RNA hydrolysis are important genetic material. Among them, flavor nucleotides (guanosine and inosine) have a special fresh aroma and can significantly increase animal feed intake.

      2. Yeast protein: The protein content in yeast is about 50%. After hydrolysis, the amino acid nitrogen can reach 3%, and the free amino acid content is about 10%. The standard ileal amino acid digestion rate is high, and the balance of essential amino acids is good, especially the high content of tryptophan and the high content of glutamic acid, which has a strong attractant function.

      3. Yeast polysaccharides: Mannan is the main component of the outer wall of brewing yeast cells, accounting for about 30% of the dry weight of the cell wall and equivalent to the content of pectin in the inner wall. It is a functional polysaccharide that regulates animal intestinal health, activates the body's immune system, and effectively adsorbs mycotoxins.

III Function and application areas:

In the field of feed:

      1. Nutritional supplementation: Provide animals with rich amino acids, small peptides, nucleotides and other nutrients, which can be used as high-quality protein sources in feed to supplement the daily nutritional needs of animals and promote their growth and development.

      2. Enhance immunity: It can activate the animal's immune system, enhance the activity of macrophages, induce a series of humoral immune responses in the body, and improve the animal's disease resistance.

      3. Improve intestinal health: It helps maintain the balance of animal gut microbiota, promote the growth of beneficial bacteria in the intestine, and the mannan it contains can occupy space to adsorb pathogenic microorganisms, protect intestinal mucosa, and reduce the occurrence of intestinal diseases.

      4. Improve the palatability of feed: It has a special fresh aroma that can stimulate animals' sense of smell and taste, increase their feed intake, and improve the utilization rate of feed.

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