A kind of Saccharomyces cerevisiae and its screening culture method and method for soybean meal fermentation

A technology of Saccharomyces cerevisiae and a cultivation method, applied in the field of microorganisms, can solve the problems such as the decline, influence, and destruction of the digestibility of soybean meal by animals, and achieve the effects of stabilizing the quality of fermented soybean meal, reducing animal diseases, and improving the effect of attracting food.
CN103396956BActive Publication Date: 2018-07-31湖北邦之德牧业科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖北邦之德牧业科技有限公司
Publication Date
2018-07-31

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Abstract

The present invention relates to a kind of Saccharomyces cerevisiae and its screening culture method and method for fermenting soybean meal. Saccharomyces cerevisiae BZD‑02 (Saccharomyces cerevisiae BZD‑02), its morphological characteristics are mainly: 1) On YPD medium, the colony is milky white , the texture of the colony is uniform, and the color of the front and back, the edge and the central part are uniform; 2) The result of the microscopic examination of the bacteria is oval. The screening step includes: mixing soybean meal and molasses in proportion to form a substrate, burying the substrate in soil for enrichment, and then separating and purifying. The cultivation of Saccharomyces cerevisiae includes making medium, culturing strains and low temperature screening. The method for Saccharomyces cerevisiae to ferment soybean meal includes inoculation and fermentation culture. Advantages of the present invention: the strain can grow rapidly in the culture medium, can increase the crude protein content of soybean meal, degrade anti-nutritional factors such as raffinose and stachyose in soybean meal, improve the quality of fermented soybean meal, and increase stability; fermented soybean meal can replace fish meal Such as animal protein feed, improve immunity, prevent and reduce animal diseases, and promote healthy farming.
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Description

Technical field

[0001] The invention relates to a kind of brewer's yeast, a screening and culturing method thereof and a method for soybean meal fermentation. Specifically, it is a low-temperature saccharomyces cerevisiae strain, a screening and culturing method thereof, and a method for soybean meal fermentation, which are particularly suitable for preparing high-quality fermented soybean meal products, and belong to the field of microbiological technology. Background technique

[0002] Soybean meal is a by-product obtained by extracting soybean oil from soybeans. Its crude protein content is high, generally 43% to 45%, with balanced amino acid composition and high nutritional value. Compared with cottonseed meal, peanut meal, rapeseed meal and other animal and vegetable oil meal feed products, soybean meal has the largest output and the most versatile. Soybean meal is an important source of food protein in poultry and swine industry, especially it contains lysine, which is eas...

Claims

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