Glucomannan is a food additive used as an emulsifier and thickener. The main emulsifier in egg yolk is called lecithin, which is a phospholipid. Polysorbate 80 is a nonionic surfactant and emulsifier often used in foods and cosmetics. It is widely used as a thickener, emulsifier, and stabilizer. Triethanolamine is used primarily in making surfactants, such as for emulsifier. Additives such as fat, glucose, sodium nitrate and emulsifier can reduce retrogradation of starch . Sorbitan monostearate is primarily used as an emulsifier to keep water and oils mixed. Polysorbate 80 is used as an emulsifier in foods. Ethyl cellulose is also used as a food additive as an emulsifier (E462). It also is used as an emulsifier and dispersant in topical preparations. A related glycerol ester (E445) can be used as an emulsifier in soft drinks. As a food additive, SHMP is used as an emulsifier. CMC is used in chewing gums, margarines and peanut butter as an emulsifier. It is used commercially in foods requiring a natural emulsifier or lubricant. It is used as a thickening agent and emulsifier.