The brewing process generates a large amount of yeast byproducts. For a medium-sized enterprise with an annual production capacity of 50,000 tons, this can amount to 750-1000 tons of spent yeast slurry. This was previously directly released into the environment, causing serious pollution. However, spent brewer's yeast actually contains 48%-55% protein, 23%-28% carbohydrates, 6%-8% ribonucleic acid, 2% B vitamins, 1% glutathione, as well as abundant amino acids and numerous minerals.
This project utilizes enzyme preparations to break down yeast cell walls and produce hydrolyzed protein feed. Large yeast protein molecules are broken down into smaller polypeptides and free amino acids, making them easier for livestock and aquatic animals to digest and absorb, effectively improving protein utilization and reducing the feed conversion ratio. Enzymatic hydrolysis disrupts yeast cell walls, fully releasing intracellular nutrients, enhancing palatability, and promoting feed intake. Simultaneously, it degrades some anti-nutritional factors, reducing the burden on the animal's intestines, improving gut health, and enhancing immunity and stress resistance. It can be widely added to aquatic feed, young animal feed, and pet food to improve growth performance and reduce breeding losses.
