Fermented feed strains and types

Microbial fermentation feed strains and types

Qingdao Xinkang Biological as a national high-tech technology, mainly engaged in microbial strains research and development, production and fermentation feed technology promotion work.

Qingdao Xinkang bio-fermentation

China's Ministry of Agriculture in December 2003 issued Notice No. 3l8 "Feed Additives Species Catalog," there are l5 kinds of: Bacillus licheniformis, Bacillus subtilis, Bifidobacterium bifidum, Enterococcus faecalis, Enterococcus faecium, Enterococcus lactis, Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus lactis, Lactobacillus plantarum, Lactococcus lactis, Lactobacillus pentosus, Pseudomallei, Saccharomyces cerevisiae, Pseudomonas swampii. The probiotic species currently on the market for feed fermentation are mainly Lactobacillus, Bacillus, yeast and molds.

Lactobacilli, the earliest and most widely used probiotic, is a general term for a group of bacteria that produce large amounts of lactic acid during the fermentation of available carbohydrates. Usually anaerobic or partially anaerobic bacteria, acid-resistant, in the pH value of 4.5 or less can still grow, the study found that the metabolites and live bacteria on the Gram-positive bacteria, Gram-negative bacteria have a strong bacteriostatic effect, with the reduction of pH value of the inhibition of bacteriostatic effect gradually become stronger, the live bacteria in vivo and metabolites contain a high degree of superoxide dismutase (SOD), can enhance the animal's humoral immunity and cellular immunity.

Bacillus subtilis is a kind of aerobic bacteria that can produce spores, and can tolerate high temperature, high pressure and acid and alkali, with strong vitality. Bacillus is able to tolerate stomach acid and digestive bile salts and digestive juices in the upper part of the digestive tract to destroy, after reaching the lower part of the digestive tract to sprout growth and reproduction; Bacillus is an aerobic bacterium, consume a large amount of oxygen in the elimination of intestinal tract to maintain the anaerobic environment of intestinal tract, so as to promote the growth of anaerobic probiotic bacteria such as bifidobacteria of lactic acid bacteria and inhibit the growth of aerobic pathogens, to maintain the balance of the bacterial flora of the intestinal tract of the animals. Bacillus can produce vitamin B1, B2, B6 and other B vitamins, vitamin C, protease, amylase and lipase and other enzymes and a variety of metabolites, the degradation of feed digestion and absorption and animal nutrient metabolism play a role in promoting.

Yeast is a class of non-filamentous eukaryotic microorganisms, generally refers to a variety of unicellular fungi capable of fermenting sugars, yeast is very rich in protein, B vitamins, fat, sugar, enzymes and other nutrients. A large number of applied research experiments have proved that yeast plays a role in enhancing animal immunity, improving animal performance and reducing stress. The main types of feed yeast are brewer's yeast and prion yeast. Brewer's yeast is used for brewing beer and other beverage wines, but also for fermenting bread. Bacteria with high vitamin and protein content can be used as edible, medicinal and feed yeast. Prion yeast can ferment glucose, sucrose, raffinose and assimilate nitrate. The protein content and vitamin B content of prion yeast are higher than that of brewer's yeast. It can use urea and nitrate as a nitrogen source and does not require any growth factors. Especially important is that it can use five-carbon sugar and six-carbon sugar, but also can use the paper industry's sulfite, wood hydrolysis liquid and molasses and other production of human and animal food protein.

Commonly used molds include Rhizoctonia solani, Aspergillus niger, Aspergillus oryzae. Molds can be used to decompose cellulose and starch.

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