Polyglycerol Esters of Fatty Acids (PGE) is a non-ionic surfactant with characteristics such as high temperature and acid resistance. They are derived from polyglycerol, which is a polyol (sugar alcohol), and fatty acids. PGE emulsifier has good foaming and emulsifying properties that allow it to be used as a foaming agent for cakes and cream cakes. Polyglycerol esters of fatty acids ... https://www.cnchemsino.com/products/polyglycerol-esters-of-fatty-acids/polyglycerol-esters-of-fatty-acids-pge.html