Xanthan gum is also called Yellow adhesive, xanthan gum, xanthomonas polysaccharide. It is a kind of monospore polysaccharide generated by fermentation of Pseudomonas flava. Since its special macromolecule construction and colloidal properties, it’s with several functions. It can be used as emulsifier, stabilizer, gel thickener, impregnating compound, membrane shaping agent and others. It is widely applied in various fields of national economy. Xanthan gum is praised as “the monosodium glutamate of industry”; it is the microbial polysaccharide with largest production scale and extremely wide application.