Soya lecithin liquid is a yellow to brown viscous liquid separated from the soybean oil refining process. It is an important by-product in the oil industry. Soya lecithin liquid is mainly composed of glycerol, choline, fatty acids and other ingredients, and can be dissolved in oils and non-polar solvents. It is mainly used as an emulsifier and stabilizer in the food field, and can also be used as a feed additive in the field of animal nutrition.