Application Mechanism of Xylo-oligosaccharides in Feed

Xylo-oligosaccharides have good functional properties, and their application mechanism in feed is mainly manifested in the following aspects:

It is difficult to be decomposed by animal digestive enzyme system

Various digestive juices such as animal saliva, gastric juice, pancreatic juice and intestinal juice can hardly decompose Xylo-oligosaccharide. Therefore, as animal feed additives, most XOS can reach the large intestine for bifidobacteria to proliferate.

It has unique acid and heat stability

Various digestive juices of animals cannot decompose Xylo-oligosaccharide, which makes it have extremely high biochemical stability. Studies have shown that 5% XOS solution has no obvious change after heating for 1 hour in the pH range of 2.5~8.0; acidic beverages containing XOS with a pH of about 3.4 are stored at room temperature for 1 year, and the retention of XOS reaches more than 97%. Xylo-oligosaccharides can withstand high temperatures, does not decompose at 120℃~150℃, and can withstand all extreme processing conditions in feed processing.

It has a highly selective proliferation effect on bifidobacteria

Xylooligosaccharides have a highly selective proliferation effect on bifidobacteria in the intestine. In vitro test results show that, except for bifidobacteria, most intestinal bacteria have poor utilization of xylooligosaccharides. Xylooligosaccharides have a higher proliferation effect on bifidobacteria than other functional oligosaccharides. It has the characteristics of small addition amount and good proliferation effect on bifidobacteria.

Xylooligosaccharides enter the animal microecological flora and highly selectively proliferate beneficial bacteria such as bifidobacteria. Bifidobacteria can naturally synthesize B vitamins, amino acids or bacterial proteins for small intestine absorption and utilization, which can significantly enhance the activity of digestive enzymes in animals and improve the digestion and absorption capacity of animals for protein. At the same time, the fermentation products of bifidobacteria can produce organic acids such as propionic acid, butyric acid and acetic acid, reduce intestinal pH, increase mineral solubility, and promote mineral absorption, thereby improving livestock and poultry production performance and health status, and improving feed conversion rate.

It can improve animal immunity

Xylooligosaccharides can act as "pseudo-receptors" of pathogens to bind to lectins (or sugar-binding proteins) ligands on the surface of pathogenic bacteria cells, reducing the chances of pathogens binding to intestinal mucosal epithelial cell receptors, causing them to die due to starvation, and achieving the purpose of inhibiting the growth of harmful bacteria.

The barrier effect of xylooligosaccharides prevents pathogens from colonizing on host cells and exists in a free state, greatly reducing their tolerance to antibiotics, thereby improving the killing and inhibitory effects of antibiotics on pathogens. In addition, it can induce a variety of cytokines in the animal immune system, promote interferon production, activate macrophages and T and B lymphocytes, increase the lethality of natural killer cells (NK), promote antibody production, and thus enhance the immune function of animals.

After entering the large intestine of animals, xylooligosaccharides have the basic characteristics of soluble dietary fiber, reduce toxic metabolites, promote intestinal peristalsis, enhance digestion mechanism, increase hormone levels in the blood, promote body anabolism, stimulate animal immune function, and play a nutritional role through immune pathways.

It has good compatibility with food

Xylooligosaccharides have good compatibility with food. Only a small amount of xylooligosaccharides needs to be added to the feed to achieve a good health effect. At the same time, adding a certain amount of xylooligosaccharides to the feed can increase the animal's absorption of calcium. Xylooligosaccharides have no effect on the various components in the feed.

It has high biological efficacy and small addition amount

Xylooligosaccharides have a high biological efficacy, and their addition amount is 1/20 of Isomalto-oligosaccharides, which is currently widely used in the breeding industry, and 1/7 to 1/10 of Fructo-oligosaccharides. Therefore, as a feed additive, xylooligosaccharides have the excellent characteristics of small addition amount, low cost and high breeding efficiency.