Method for removing cotton rapeseed meal toxicant by fermentation method and enhancing nutrient value thereof, feeding fermented cotton rapeseed meal protein feedstock and applications thereof

Abstract

The invention discloses a method for removing cotton rapeseed meal toxicant by fermentation method and enhancing nutrient value thereof, a feeding fermented cotton rapeseed meal protein feedstock and applications thereof. The method comprises the steps that: cottonseed meal and rapeseed meal are mixed, the mixture is first added with feedstock water and complex enzyme preparation, and then inoculated with microorganism strain capable of producing protease bacteria or / and lactic acid bacteria as well as decomposing glucosinolate or / and gossypol, then fermentation is performed to obtain treated cotton rapeseed meal so as to obtain nontoxic, highly-nutrient feeding fermented cotton rapeseed meal protein feedstock, and the feeding fermented cotton rapeseed meal protein feedstock is used as protein feedstock component to form cotton rapeseed meal animal feed according to 15% of the addition proportion. Using modern biological technology, the method solves the problems of low utilization rate of cotton rapeseed meal, small amount of addition in the feed, the presence of toxicant and the like, and eases the strain on feed protein in our country.

Description

technical field [0001] The invention belongs to the technical field of biological fermentation, and in particular relates to a method for removing poisons of cottonseed rapeseed and improving nutritional value through fermentation, and a high-quality and non-toxic fermented cottonseed rapeseed protein raw material for feeding. Background technique [0002] According to expert forecasts, when my country's population reaches its peak of 1.6 billion in 2030, the total demand for grain will be 743 million tons, exceeding 50% of the current production capacity. At the same time, the area of ​​arable land was further reduced, only about 80% of the current level. Although relevant experts pointed out that by increasing the multi-cropping index and using science and technology to increase the yield per unit area, my country's grain output is expected to reach 710 million tons in 2030, but there are still obvious variables. By 2010, 2020, and 2030, 38%, 43%, and 50% of my country's ...

AI Technical Summary

Problems solved by technology

At present, the utilization rate of cottonseed as feed raw material in my country is less than 15%. In contrast to this, there is a serious shortage of feed protein raw materials in my country, which restricts the development of animal husbandry production.

(3) Impact on the reproductive function of male animals: free gossypol can damage the seminiferous epithelium of the testis, resulting in abnormal sperm, death or even no sperm

(5) Affect the effectiveness of amino acids: During the cottonseed oil extraction process, due to the effect of heat and humidity, the active aldehyde group of free gossypol can combine with lysine in cottonseed cake, and a Maillard reaction occurs, which greatly reduces the loss of cottonseed Availability of lysine in cake

As mentioned above, cottonseed meal has certain deficiencies in nutritional balance, especially amino acid balance, and contains toxic and harmful substances to animals and various anti-nutritional factors, mainly: cellulose, glucosinolate (referred to as Glucosinolates), phytic acid, tannin, sinapine, gossypol, cyclopropene fatty acid and other anti-nutritional factors, their existence, on the one hand, inhibits certain digestive enzymes in animals or complexes with nutrients to form indigestible ingredients, etc., which makes the digestibility of soybean meal and the absorption rate of animals decrease

On the other hand, it can destroy certain organs in animals and cause adverse effects on the physiology, growth and health of animals.

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