Xanthan gum
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.
Basic information
English name: Xanthan gum Other name: Yellow adhesive, xanthan gum, xanthomonas polysaccharide
Chemical formula: C35H49O29 CAS number: 11138-66-2 EINECS number: 234-394-2
Appearance: white or light yellow powder
1.Suspension property and emulsifying property
Xanthan gum is with good suspension effect for insoluble solid and oil drop.
2.Good water solubility
Xanthan gum can be dissolve rapidly in water. It is with very good water solubility. It especially also can be dissolve in cold water, so that it can omits complicated processing procedures and makes the application convenient.
3.Thickening property
Xanthan gum solution is with properties of low concentration and high viscosity (viscosity of its 1% aqueous solution is equal to 100 times of gelatin). It's a kind of efficient thickening agent.
4.Pseudoplasticity
Xanthan gum aqueous solution is with high viscosity under static state or low shearing action; its viscosity will be sharp dropped under high shearing action while the molecular structure won't be changed. When the shearing action is eliminated, the original viscosity will be recovered immediately. The relationship between shearing action and viscosity are totally malleable. The pseudoplasticity of xanthan gum is very outstanding. This kind of pseudoplasticity is very effective for stabilizing suspension liquid and emulsion.