In food industry,mostly Xanthan gum ( E415,11138-66-2 ) is used in sauces and salad dressings. Although Xanthan gum is not a kind of emulsifier, by stabilizing the emulsion Xanthan gum helps to prevent oil separation , Xanthan gum also helps suspend solid particles, such as spices. Xanthan gum used in frozen foods and beverages, in many ice creams, xanthan gum helps create the pleasant texture. xanthan gum often used in toothpast, to keep the product uniform,where Xanthan gum serves as a binder. in gluten-free baking Xanthan gum is also selected . Since the gluten found in wheat must be omitted, For the reason to be achieved with the gluten, Xanthan gum is used to give the dough or batter a stickiness. to replace the fat and emulsifiers found in yolks ,Xanthan gum helps thicken commercial egg substitutes made from egg whites. for those swallowing disorders ,Xanthan gum is also a good method of thickening liquids , since xanthan gum does not change the color or flavor.