Biological fermentation process for improving protein content of cottonseed meal and detoxicating cottonseed meal

Abstract

The invention relates to a biological fermentation process for improving the protein content of cottonseed meal and detoxicating the cottonseed meal, which is characterized in that: the byproduct of cottonseed subjected to oil extraction, namely the cottonseed meal is taken as a raw material; the cottonseed meal is processed by adopting microbial fermentation technology; a cottonseed meal mixed fermentation process is adopted; strains are combined, cell walls of a plant are broken and free gossypol and anti-nutritional factors contained in the cottonseed meal, such as cyclopropene fatty acid, phytic acid, tannin, non-starch polysaccharide and non-glycan are modified, transferred, recombinated, purified and detoxicated; and proteins in the cottonseed meal which have large molecular weight and are difficult to absorb by animals are degraded into small active peptides by a biological enzymolysis method, and probiotics, digestive enzymes, lactic acid and various bioactive factors in the product are kept. The biological fermentation process can greatly improve the protein content of the cottonseed meal and effectively achieve the detoxicating effect.

Description

technical field [0001] The invention relates to a biological fermentation method, in particular to a biological fermentation method capable of increasing the protein content of cotton meal and capable of detoxification. Background technique [0002] The existing protein extracted from cotton dregs is generally extracted by "soaking" method, the method is cottonseed-crushing-soaking-separation-filtration-steam adjustment of PH value-precipitation-separation-drying-extraction of cottonseed protein. The disadvantages of this method are: the cottonseed protein is denatured due to high humidity when crushing, which affects the extraction of protein; the high temperature of steam directly passing through the inlet of the filtrate reduces the quality and extraction rate of protein; in addition, this method cannot remove cottonseed of gossypol. Because gossypol is toxic, resulting in low protein extraction rate, therefore, the detoxification of cottonseed is also a key issue. At p...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: the cottonseed protein is denatured due to high humidity when crushing, which affects the extraction of protein; the high temperature of steam directly passing through the inlet of the filtrate reduces the quality and extraction rate of protein; in addition, this method cannot remove cottonseed gossypol

Because gossypol is toxic, resulting in low protein extraction rate, therefore, detoxification of cottonseed is also a key issue

At present, there are ferrous sulfate detoxification methods, oxidant detoxification methods, etc., which have disadvantages such as excessive investment in equipment and loss of nutrients.

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