Lecithin, a substance that resembles fat, is naturally found in the cells of every living thing. There are many food sources of lecithin, including soybeans, eggs, whole grains, peanuts and wheat germ. Soybean lecithin, also known as daidzein, is a by-product in the process of refining soybean oil. It is obtained by solvent extraction, centrifugation and alcohol washing. Phospholipids precipitated from soybean oil during degumming are processed and dried to obtain soybean lecithin powder.
