Xylo-oligosaccharide (xos), also known as xylo-oligosaccharide, is a mixture of oligosaccharides composed of 2-9 xylose units connected by β-1,4 glycosidic bonds. The main ingredients are xylobiose, xylotriose, and xylotetraose. Xylooligosaccharides are made from corncobs and refined by enzymatic hydrolysis. On June 14, 2017, the International Scientific Association for Probiotics and Prebiotics (ISAPP) proposed a new definition of prebiotics: they can be selectively used by the host's flora and converted into substances that are beneficial to the host's health. This definition indicates that XOS is a prebiotic.
XOS is 10-20 times more effective in activating bifidobacteria in the intestine than other polymerases. After 3 weeks of continuous intake, the proportion of bifidobacteria increased from 8.5% to 20.2%. Compared with FOS, GOS, and IMO, the daily required dosage is the lowest. XOS may be the lowest effective dosage of prebiotics, only 0.7g daily, except for conventional In addition to the application of dosage form products, XOS has the characteristics of small amount and high efficiency, which has obvious advantages in the food application of low filling dosage form, such as: tablets, capsules, gummies, etc.
Numerous studies have shown that: XOS significantly increases the genus of Bifidobacterium and does not directly change the micro-ecological flora structure, but extremely significantly increases the abundance of beneficial bacteria, increases the overall proportion of beneficial bacteria, and activates the intestinal micro-ecology.
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