The yeast powder is yeast which has not been decomposed, but the nutrients of yeast soaking powder have been decomposed, the speed and efficiency of microbial absorption and utilization are higher, and the fermentation residues are less; the current biological fermentation research basically adopts yeast soaking powder and yeast extract. Yeast powder is widely used in traditional antibiotics and other fermentation industries.
There are several specifications for marketed feed yeast. The yeast for feeds specified in the industry standards of the Ministry of Light Industry of the People's Republic of China refer specifically to carbohydrates such as starch, molasses, and high concentration organic wastes such as monosodium glutamate, alcohol, etc. The product obtained by separating the yeast cells (without adding other substances) from the fermentation mash is one of the single-cell protein feeds. And indicated that the main yeasts are Candidautilis, Candida tropicalis, Torula utilis, Torulopsis utilis, Saccharomyces cerevisiae ).