The invention discloses a novel technology for improving feeding nutritive value of
sesame seed meal employing an enzymolysis method and a
fermentation method of microorganisms. The method is characterized in that fermented
sesame seed meal products, which are high in
protein content, rich in
nutrient substances including polypeptide,
small peptide,
amino acid, an
organic acid, probiotics and the like, low in content of anti-nutritional factors including
phytic acid,
tannin and the like and high in additional value are prepared by a technology of combining enzymolysis of exogenously added
alkaline protease with two-step anaerobic
fermentation of microorganisms. The content of crude
protein in the fermented
sesame seed meal products is greater than or equal to 50%; the acid-soluble
protein content of the fermented sesame seed meal products is greater than or equal to 10%; the
hydrolysis degree of the fermented sesame seed meal products is greater than or equal to 35%; the
organic acid content of the fermented sesame seed meal products is greater than or equal to 5%; the
phytic acid content of the fermented sesame seed meal products is smaller than or equal to 0.1%; the volatile basic
nitrogen content of the fermented sesame seed meal products is smaller than or equal to 100 mg / 100g; the
utilization rate of the feed is increased; the cultivation cost is reduced. The fermented sesame seed meal is applied to an aquatic feed, so that the additive amount of the fermented sesame seed meal in the aquatic feed is increased, and the fermented sesame seed meal can partially replace
fish meal, bean pulp and the like. In addition,
solid static
fermentation is adopted by the method, sterilization is not needed in the fermentation process, and the method is simple in production technology, low in production cost and broad in industrial production prospect.