Functional oligosaccharides is a growth factor of beneficial bacteria in the intestine, which can promote the balance of bacteria in animals. The functional oligosaccharides mainly include soybean oligosaccharides, fructooligosaccharides, mannose oligosaccharides, xylose, raffinose, Gold candy and so on. In recent years, functional oligosaccharides have attracted more and more attention to some special functions of human body and animal body. In functional foods, functional oligosaccharides have become a new generation of health foods that reduce constipation, lower blood pressure, blood viscosity, and cholesterol in the body. In the area of feed, its low residue, non-drug resistance, innate nature and good diarrhea-reducing properties make it an alternative to certain antibiotics.
1. The role of functional oligosaccharides and mechanism.
The flora in the intestine of animals can be divided into three categories. One is a beneficial flora, such as Bifidobacterium, Lactobacillus, which have a nourishing effect on animal body, can produce proteins, B vitamins and K vitamins and other substances, and can make lactose into lactic acid, lactose to improve the Tolerance, while also promoting the absorption of calcium. And Bifidobacterium, Lactobacillus also has physiological functions, they can produce acetic acid, lactic acid and other substances, reducing the intestinal pH, Escherichia coli is sensitive to acid, acidic environment can inhibit the proliferation of large intestine Salmonella, with the role of reducing diarrhea, And reduce the generation of harmful gases in animals; the second is harmful bacteria, which can increase the toxic substances in animals and make the animals unwell or poisoned. In severe cases, they can cause large-scale infectious diseases. The representatives of flora are Escherichia coli, Staphylococcus, Pseudomonas and so on; the third is the intermediary, that bound in the community between beneficial and harmful bacteria, mainly Peptococcus, Streptococcus, etc. , Which are beneficial bacteria when they are in their health, but which become harmful bacteria when the body is in decline, sick and sub-healthy. Strains compete with each other in animals and inhibit each other to a state of homeostasis. In healthy state, beneficial bacteria prevail, while in non-healthy state, harmful bacteria dominate. Adding antibiotics can not only kill harmful bacteria, but also kill the beneficial bacteria, destroy the balance of intestinal flora, and add live bacteria are subject to many conditions. As part of the oligosaccharide is not the body's stomach acid, pepsin degradation, can not be absorbed by the small intestine, you can directly reach the large intestine, can be used by microorganisms in the large intestine. Adding functional oligosaccharides to feed, the use of various flora is different, most of the beneficial bacteria can be used, and harmful bacteria such as E. coli can not be used to promote the proliferation of beneficial bacteria in animals.
2. functional oligosaccharides research.
The development and application of antibiotics makes animal intensive feeding possible, but the resulting side effects are also more and more recognized by people, the emergence of drug resistance, environmental pollution and residues from the animal body and then into the body caused by The impact of human health has always plagued people. Functional oligosaccharides will be a good alternative to antibiotics for their stable, low-sugar, non-toxic side effects, no contamination, no residue and their effect on good scavengers in the gut of animals.