Glycerol Ester of Gum Rosin (GEGR), also called as Glyceryl Rosinate, or Ester Gum, is an oil-soluble food additive. which esterified with Rosin and edible Glycerol.
Its high density helps keep oils in suspension in water and this property is the reason why it is often used as a beverage stabilizer. It is widely used as a base in the production of chewing-gum. It also serves as an alternative to brominated vegetable oil in citrus oil flavored soft drinks. In some cases both ingredients are used together. (Approved by FDA 172.735)