... through esterification with glycerol Glycerol ester of gum rosin are made from gum rosin or refined gum rosin through esterification with glycerol, Used ... . Capacity of its main products are: Gum Rosin 40,000MT, Turpentine 5,200MT, Food Grade Ester Gum 6,000MT, Hydrogenated Rosin 10,000MT ... is capable of producing 20,000 MT of Gum Rosin, 2,500MT of Gum Turpentine and 10,000MT of Rosin Esters. ( ...