Fermentation method of soybean meal

Abstract

The invention belongs to the microbial fermentation field, and particularly relates to a fermentation method of soybean meal, which adopts a formula that: the ratio of soybean meal to sweet potato(corn) starch: salt: yeast: active 99 fermenter: coarse fodder degrader: calcium hydrophosphate: lysine: threonine: ferrous sulfate: zinc oxide is 100: 2 to 10: 0.2 to 0.4: 0.025: 0.036 to 0.04: 0.036 to 0.04: 0.4 to 0.6: 0.1 to 0.2: 0.07 to 0.1: 0.01: 0.001. The raw materials are placed into a blender to be mixed with 1000 to 1200kg of water, then the mixture enters an underground fermentation pool, and the underground fermentation pool is covered and sealed by a film. The temperature is maintained within the temperature range of 15 to 35 DEG C through the terrestrial heat, and after being fermented for 5 to 10 days, the soybean meal can be directly used for feeding animals. The fermentation method of the soybean meal is simple to operate, protein inside the soybean meal can be thoroughly decomposed, and contents of the lysine, threonine and trace elements of iron and zinc are high and are easy to assimilate by the animals.

Description

technical field [0001] The technical field of microbial fermentation of the present invention specifically relates to a fermentation method in which soybean meal is used as a raw material and added with biological probiotics and enzyme preparations. Background technique [0002] The traditional method of utilization is to use soybean meal as animal feed and feed it directly to animals, because soybean meal contains anti-trypsin, saponin, hemagglutinin and other anti-nutritional factors, among which trypsin inhibitor, which can hinder the action of trypsin in pigs on soybeans. Digestion and absorption of protein causes diarrhea, affects growth, poor palatability, difficult to digest, and low feed utilization. This is not only a great loss economically, but also a great waste of precious resources. [0003] Some of the existing soybean meal fermentation technologies require the preparation of special fermentation strains and culture media, which are difficult for farmers to o...

AI Technical Summary

Problems solved by technology

[0002] The traditional method of utilization is to use soybean meal as animal feed and feed it directly to animals, because soybean meal contains anti-trypsin, saponin, hemagglutinin and other anti-nutritional factors, among which trypsin inhibitor, which can hinder the action of trypsin in pigs on soybeans. Digestion and absorption of protein, causing diarrhea, affecting growth, poor palatability, difficult to digest, and low feed utilization

This is not only a great loss economically, but also a great waste of precious resources

[0003] Some of the existing soybean meal fermentation technologies require the preparation of special fermentation strains and culture media, which are difficult for farmers to operate; some are easy to operate, but the protein decomposition is not complete, which may easily lead to animal feed with fermented soybean meal. Flatulence

At the same time, the fermented soybean meal currently produced has low content of amino acids lysine and threonine necessary for animal growth, and lacks the trace elements iron and zinc for animal growth.

These amino acids and trace elements are supplemented by adding them to the feed, but the absorption rate of animals is not high