Abstract: The hydrolysis of oils and fats is a reaction of two different phase. So it is the essential factor to produce more free radicals, such as•O, •OH, •O2H, to the reaction. From the results of this research, we can get the following conclusion: 95% hydrolysis rate can be reached for the coconut oil reaction system. The conditions for reaction are: frequency, 20kHz; current of energy transfer,0.52A;quantity of CTAB added, 40% of oil phase; reaction time, 50min. Under this condition, the reaction system exhibit properties like microemulsion. The reaction time and efficiency are improved greatly by contrast to normal hydrolysis methods.

Key words: ultrasound, phase transfer agent, coconut oil, hydrolysis