A kind of amino acid enhanced fermented enzymolysis soybean meal and its application

Abstract

The invention discloses amino-acid-enhanced fermented enzymatic-hydrolyzed soybean meal and an application thereof, and belongs to the technical field of feed. The amino-acid-enhanced fermented enzymatic-hydrolyzed soybean meal comprises the following components, by weight percentage: 95-98% of fermented enzymatic-hydrolyzed soybean meal, 1-4% of lysine, and 0.5-2% of methionine. Combination of 7 beneficial bacteria and 3 enzymic preparations is adopted. Pulverized soybean meal and a little corn flour are subjected to aerobic, microaerobic, and anaerobic fermentation and enzymatic hydrolysis for 72 h to remove anti-nutrition factors in soybean meal. Cell walls are broken, non-protein nitrogen is converted to mycoprotein, protein is partly decomposed into polypeptide and small peptide, and many B-group vitamins are generated, so that nutrition properties of the soybean meal is improved overall, and the fermented enzymatic-hydrolyzed soybean meal becomes a superior feed protein source. The fermented enzymatic-hydrolyzed soybean meal is taken as a basis, and a proper amount of lysine and methionine is added for amino acid balance to make a novel protein source for replacing or partly replacing feed fish meal.

Description

technical field [0001] The invention belongs to the technical field of feed, and in particular relates to amino acid enhanced fermented enzymolysis soybean meal and application thereof. Background technique [0002] my country is a big aquaculture country, which has led to a huge demand for aquatic feed. The output of aquatic feed in my country accounts for more than 60% of the world's total. Fishmeal occupies a large proportion in the composition of aquatic feed, especially the proportion of fishmeal in the feed of some special aquatic products is as high as 50%, which makes my country the largest consumer of fishmeal. According to relevant statistics, in 2011, my country consumed about 1.45-1.5 million tons of fishmeal, of which 1.2 million tons depended on imports, accounting for about 80% of the total. With the improvement of people's living standards in our country, the demand for aquatic products is increasing day by day. With the transformation of my country's aquacu...

AI Technical Summary

Problems solved by technology

[0003] Soybean meal is a by-product produced by extracting soybean oil from soybeans by extraction process. Compared with other vegetable proteins, it has high protein content (up to 42-48%), excellent amino acid structure, high digestibility and good palatability. Good characteristics, but there are still big differences compared with fish meal, the outstanding point is that the digestibility is low (fish meal is about 95%, soybean meal is only about 82%), the main reason is that there are anti-nutritional factors such as trypsin inhibitor in soybean meal The disadvantage of indigestibility caused by the common cell wall composition characteristics of factor and vegetable protein

[0004] The advantages of soybean meal make it the most likely substitute for fishmeal, but the disadvantages make it usually not all direct replacements

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