A process was optimized for the enzymatic synthesis of glyceryl ferulate with a yield of up to 96% using a vacuum-rotary evaporation strategy under following conditions: 15 mmol glycerol, 1.5 mmol ethyl ferulate, 170 mg Candida antarctica lipase, at 60 degrees C for 10 h and under a vacuum of 10 mm Hg. The immobilized lipase can be used 10 times.