Production technology of aspergillus oryzae fermented soybean meal

Abstract

The invention discloses a production technology of aspergillus oryzae fermented soybean meal. The production technology comprises the following steps: (1) aspergillus oryzae strain activation; (2) aspergillus oryzae strain liquid culture; (3) aspergillus oryzae strain culture in a triangular flask; and (4) soybean meal fermentation. The production technology is simple and easy to understand, the produced soybean meal is a main protein raw material of animal feeds, and has the advantages of high crude protein content, reasonable amino acid composition, high animal digestion utilization rate and the like. Aspergillus oryzae also can produce amylase, saccharifying enzyme, cellulase, phytase and the like, and under the action of protease, nondigestible macromolecular proteins are degraded into peptone, peptides and various amino acids, and so that crude fiber, phytic acid and other matters, which are difficult to absorb, in accessories can be degraded, and the nutritional value, health function and digestive rate can be improved.

Description

[0001] technical field [0002] The invention belongs to a production process of soybean meal, in particular to a production process of aspergillus oryzae fermenting soybean meal. [0003] Background technique [0004] Soybean meal is one of the important feed ingredients in animal husbandry and aquaculture, accounting for 80% to 90% of protein feed. At present, biological fermentation technology is an effective method to improve the quality of soybean meal. The protease produced during the fermentation process decomposes the antigenic protein and macromolecular protein into small peptides and various biologically active substances that can be digested and absorbed by animals. At the same time, soybean protein can be transformed from microorganisms into bacterial protein, which improves the quality of protein. The aroma and sauce flavor produced during the fermentation process have obvious food-attracting effects and improve the palatability of the feed. However, the curr...

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Problems solved by technology

[0006] In order to overcome the above-mentioned problems existing in the prior art field, the purpose of the present invention is to provide a production process for fermented soybean meal by Aspergillus oryzae, so as to solve the problem that the current fermented soybean meal market is relatively chaotic and the quality of market products is uneven