Glyceryl monostearate is an organic compound with a molecular formula of C21H42O4, which has two configurations, 1-MG and 2-MG. According to the names of the main constituent fatty acids, monoglycerides can be divided into glyceryl monostearate, glyceryl monolaurate, and glyceryl monooleate, among which glyceryl monostearate is the most widely used. Monoglycerides are generally oily, fat or waxy, light yellow or ivory in color, oily or tasteless, which is related to the size and saturation of the fatty group, and has excellent sensory characteristics. Monoglycerides are insoluble in water and glycerin, but can form a stable hydrated dispersion in water. In addition, monoglyceride is a polyol type nonionic surfactant. Because of its structure has a lipophilic long-chain alkyl group and two hydrophilic hydroxyl groups, it has good surface activity and can emulsify, Foaming, dispersing, defoaming, anti-starch aging, etc., is one of the most widely used emulsifiers in food and cosmetics.