100% Pure Xanthan Gum Powder (E415) For Use In Molecular Gastronomy. Xanthan Gum Is A Long Chain Polysaccharide Composed Of The Sugars Glucose, Mannose, And Glucuronic Acid. It Is Used As A Thickener In Sauces, As An Agent In Ice Cream That Prevents Ice Crystals From Forming, And As A Fat Substitute That Adds The ”Mouth Feel” Of Fat Without The Calories. Xanthan Gum Is Also Commonly Used In Gluten Free Baking, And Has Synergies With A Variety Of Other Gums.