Faculty of Applied Chemistry and Material Science, University "Politehnica" of Bucharest, 1-7 Gh. Polizu, Bucharest 011061, Romania.
Faculty of Applied Chemistry and Material Science, University "Politehnica" of Bucharest, 1-7 Gh. Polizu, Bucharest 011061, Romania.
Ultrason Sonochem. 2019 Jun;54:32-38. doi: 10.1016/j.ultsonch.2019.02.018. Epub 2019 Feb 18.
A laboratory scale ultrasonic flow reactor capable of enhancing enzymatic reactions has been built and characterized using as a model reaction the enzymatic synthesis of isoamyl acetate using Lipozyme 435 immobilized on a macroporous anion exchange resin. The efficiency of the reactor was determined in relation to ultrasonic power density (measured by 4-nitrophenol dosimetry), position of ultrasonic horn and temperature. The results show that ultrasound can enhance the process efficiency and also reduce the reaction time.
已经构建并表征了一种能够增强酶反应的实验室规模超声流动反应器,使用固定在大孔阴离子交换树脂上的 Lipozyme 435 作为模型反应,通过 4-硝基苯酚剂量法测量超声功率密度(measured by 4-nitrophenol dosimetry),来确定反应器在超声功率密度、超声变幅杆位置和温度方面的效率。结果表明,超声可以提高过程效率,同时缩短反应时间。