Method for producing diglyceride with rice bran oil of high acid value

The present invention discloses a method for the production of rice bran oil with high acid value diacylglycerol, the method is in a non-solvent system of rice bran oil with high acid value as a substrate material, glycerol as a reactive acyl acceptor, the use of lipase enzyme rice bran oil prices were high acid esterification of glycerol solution and diglycerides, its steps are as follows: (1) the high acid value Mao rice bran oil hydration degumming process to obtain a high acid value degummed rice bran oil; (2) in degumming high acid value rice bran oil, glycerine was added to give a mixture of diglyceride; (3) the diglycerides mixture was separated to obtain diglycerides. The present invention is taken to shorten the preparation process, the process unit operations separated from the solvent system does not exist, save energy consumption. The present invention take advantage of the system of free fatty acids reduce the acid value system, and reduce the loss of high acid value of nutrients in rice bran oil enzymatically mild reaction conditions.