Where there is xylose oligosaccharide sell?

Where there is xylose oligosaccharide sell? For xylose oligosaccharides, a lot of people is not very understanding, nano xylose oligosaccharide is what? Here is introduced:

Oligosaccharide is also called the oligosaccharides. For two or more than two (2-10) generally refers to monosaccharide units are connected by glycosidic bond formation of sugar molecules. Oligosaccharides after hydrolysis, each molecule to produce less of the monosaccharides and oligosaccharides, oligosaccharide and polysaccharide between no strict boundaries. Oligosaccharides in general can be divided into the following five kinds: extracted from natural raw materials, microwave solid phase synthesis method, acid-base catalysis, enzyme hydrolysis method, etc.