Method for improving feeding nutritive value of sesame seed meal by combining enzymolysis method with fermentation method

Abstract

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.

Description

technical field [0001] The invention relates to a new process for improving the nutritional value of sesame meal for feeding by using an enzymatic hydrolysis method and a microbial fermentation method, and belongs to the field of feed processing. Background technique [0002] Protein raw materials are the foundation of the development of the feed industry. The shortage and high price of protein raw materials in my country have become one of the bottlenecks in the development of animal husbandry and aquaculture. At present, with the improvement of people's living standards and the emphasis on the quality of life, the demand for meat, eggs, milk, and aquatic products is increasing day by day. The production of grain and feed is facing severe challenges, and feed protein resources will become increasingly scarce. It is imminent to expand feed resources and develop unconventional feed. The important strategy to alleviate the contradiction is to improve the utilization rate of ...

AI Technical Summary

Problems solved by technology

Although the above studies have certain effects on the removal of phytic acid, they all use aerobic bacteria for aerobic fermentation. Compared with anaerobic fermentation, aerobic fermentation will consume a lot of nutrient production capacity, and at the same time, intermediate metabolites will be completely oxidized and lost.

Anaerobic fermentation using anaerobic or facultative anaerobic microorganisms has been reported on soybean meal, rapeseed meal, etc., but there is no report on the use of biological fermentation method for phytic acid and tannin degradation of sesame meal