Sodium alginate, also known as sodium alginate, kelp gum, alginate, alginate, is a natural polysaccharide carbohydrate extracted from kelp. Widely used in food, medicine, textiles, printing and dyeing, paper making, household chemicals and other products, as thickeners, emulsifiers, stabilizers, adhesives, sizing agents and so on. Since the 1980s, sodium alginate has been newly expanded in food applications. Sodium alginate is not only a safe food additive, but also can be used as a base material for bionic food or therapeutic food. Because it is actually a kind of natural cellulose, it can reduce the absorption of fat sugar and bile salt, lower the serum cholesterol, Blood triglyceride and blood glucose, can prevent hypertension, diabetes, obesity and other modern diseases.