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Microbial fermented soybean meal adopts biological fermentation engineering techniques, by microbial secretion in the fermentation process into soy peptides in soybean meal into a molecular weight of 3,000 or more. 3FZ China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry
3FZ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry Microbial fermented soybean meal Common strains: lactic acid bacteria, yeast, bacillus, etc. 3FZ China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry
Qi Wei et al. Using Nisin’s Caceroccus Fungi to ferment soybean meal. Soybean meal is fermented by lactic acid, the pH is low, which can effectively improve the margin of soybean meal, promote livestock growth, and reduce the addition of antibiotics, acidulants, and reduce feed costs. 3FZ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
Molding is often used by researchers for the production of solid fermented soybean meal, and often mixed with other strains Fermentation. Mohwen et al., Using Mikhper and beer yeast mixed strains solid-state fermentation method, using a variety of enzymes produced by mold, degrades the cellulose and proteins such as cellulose and protein, and use yeast synthesis of bacterial proteins. The crude protein content in the obtained fermented soybean meal was 49.10%, which was 12.1% more than the raw material. Liu Chao [7], etc. with rice aspergillus and yeast, bran and bean cake powder as the main substrate, 30 ¡ã C mixed solid fermentation 36 h. The acidic protease activity was obtained by L 440 U / G, the number of yeast numbers was 6.29 Times; 109 / g, the crude protein was 70.56% (including 10.12% of the small peptide), and the reducing sugar was 8% new protein feed. Thus, a new protein feed production process rich in small peptides is obtained. 3FZ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
It is understood that the species for solid-state fermentation is wide, common, easy to obtain. 3FZ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
3FZ China Feed Industry Information Network – Bit Feed, Service Animal husbandry The fermentation process was divided into aerobic fermentation and anaerobic fermentation. It uses good oxygen fermentation in the pre-fermentation, which promotes aerobic microbial breeding growth in Bacillus, yeast, and the secretion of Bacillus, yeast secretion produces a large number of enzymes, vitamins and other active products to promote the growth of lactic acid bacteria. Later anaerobic fermentation, promoting proliferation of lactic acid bacteria and produces a large amount of lactic acid. Microorganisms under an oxygen-free conditions, intracellular enzymes and other biologically active ingredients in cellsSecrete.In anaerobic fermentation, the protease is enzymatic and the protease is enzymatically reacted and a flavor substance is produced. 3FZ China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry
The advantages and disadvantages of oxygen fermentation and anaerobic fermentation, combining both for fermented soybean meal can basically reach the following indicators: The small peptide produced by fermentation enzymatic hydrolysis accounted for 30% of the crude protein content in soybean meal, accounting for 10% of the finished product. 3FZ China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry
The flavor is greatly improved compared to the enzymatic hydrolysis, and a large amount of bioactive ingredients are produced, but the molecular weight is 5000 ~Between 10,000, it belongs to the polypeptide, and the physiological activity of soy olig peptides, the physiological activity of the small peptide is large, so the cost is relatively low.Therefore, more and more scholars and researchers have studied the fermented soybean meal in solid fermentation method. 3FZ China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry
