PURPOSE: To carry out the hydrolysis of an oil or fat rapidly, in high yield, by contacting water with an oil or fat containing suspended lipase interposing a separation membrane therebetween, and reacting while minimizing the pressure difference between the oil and the water and removing the water permeated to the oil phase.
CONSTITUTION: An oil or fat suspending a lipase is made to contact with water interposing a separation membrane between them, and the oil is hydrolyzed while minimizing the pressure difference between the oil and the water and removing the water permeated to the oil phase. The removal of water is carried out preferably by evaporating the water under reduced pressure, especially a pressure near or below the vapor pressure of water at the enzymatic reaction temperature.
HASHIBA IKIZOU
WADA HIDETOSHI
SAKATA MASARU
