利用超声波辅助脂肪酶Bacillus subtilis lipase(BSL2)催化合成己酸乙酯.最佳反应条件为:正己烷20mL(硅藻土40 mg,aw=0.53),120 mmol·L-1已酸和乙醇,BSL2 100 mg,在超声(150 w)清洗器中采用间歇超声50 s/30 s,于50℃反应20 min,反应速度31.95 μmol·g-1·min-1(常规振荡法的反应速率8.18μ mol·g-1·min-1).%The ultrasound was used to promote the enzymatic [Bacillus subtilis lipase ( BSL2) ] synthesis of ethyl hexanoate. The optimum reaction conditions were as follows: re-hexane was 20 mL( kieselguhr 40 mg,aw =0.53) ,n-hexanoic acid and ethanol was 120 mmol · L-1,BSL2 was 100 mg,the reaction carried out in ultrasonic cleaner( 150 W) by intermittent ultrasonic 50 s/30 s at 50 ℃ for 20 min. The reaction rate was 31. 95 μmol · g-1 · min-1 under the optimum reaction conditions,and other reaction rate was 8.18 μmol · g-1 · min-1 by conventional oscillometry method.
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