Green Synthesis of Sucrose Laurate Under Different Ultrasonic Frequencies

Abstract

In this study, the effects of ultrasonic parameters on the synthesis of sucrose laurate were investigated under four frequencies (20, 33, 53, and 80 kHz). Results indicated that low ultrasonic frequency increases sucrose monolaurate yield, whereas high ultrasonic frequency increases sucrose dilaurate yield. As the sound intensity increases from 0.55 to 1.04 W cm−2, the yield of sucrose laurate also increases, whereas the reaction time decreases. The yield of sucrose laurate decreased, and the reaction time prolonged with the decreasing pulse width. Both the initial production rate of sucrose monolaurate and the yield of sucrose dilaurate increased with the increasing temperature from 60 to 90 °C. However, further increase in the reaction temperature did not increase the yield of sucrose monolaurate but significantly reduced the reaction time. Sucrose laurate synthesized under ultrasonic frequency consisted of sucrose monolaurate, dilaurate, and polylaurate.