what is glycerol ester of rosin made from
Glycerol ester of wood rosin To make the glycerol ester of wood rosin, refined wood rosin is reacted with glycerin to produce the glycerol ester.
Vegetable oil The processing of vegetable oil in commercial applications is commonly done by chemical extraction, using solvent extracts, which produces higher yields and is quicker and less expensive. The most common solvent is petroleum-derived hexane. This technique is used for most of the "newer" industrial oils such as soybean and corn oils.