This type of low molecular-weight carbohydrate can promote the growth of animals, improve feed conversion efficiency and reduce mortality without any side-effect. Therefore, XOS is regarded as "prebiotic". XOS is recognized as the best functional oligosaccharide due to its special characteristics such as high selectivity for proliferating Bifidobacterium spp. in intestine, high stability to animal's digestive enzyme system, acidic stability, thermal stability and prominent compatibility with feed. Xylo-oligosaccharide is a functional oligosaccharide that is composed of 2-8 xylose groups through β-1, 4-glycosidic linkages. The sweetness of XOS is 40% of sucrose. XOS is a yellowy or light brown power. The physical properties of some effective ingredients of XOS are shown in following table.
Functions and Applications
1.Gastrointestinal aspects: selective fermentation of colon microorganisms, increased concentrations of short chain fatty acids, decreased intestinal PH, and ultimately increased solubilization of minerals.
2.The cell aspect: increased expression of calcium binding protein D9k and thus activated calcium diffusion channels.
3.Xylooligosaccharides and laxative: Xylooligosaccharides probiotics improving body coordination, micro environment, bacteria produce acidic substances in the process of growing.
4.Prevention and protection of dental caries.