超声波法辅助提取肉桂醛的工艺研究

Study on the Extraction of Cinnamaldehyde by Ultrasonic Assistant Method

该文主要对超声波辅助水浸提提取肉桂中的肉桂醛进行研究,探讨超声波处理过程中的各因素对提取率的影响,比较水和乙醇两种提取溶剂。结果表明:在提取剂为水时,影响肉桂醛得率的主要因素排序为:料液比>超声时间>超声功率密度,其最佳工艺条件为:料液比1∶12(g/m L),处理时间30 min,功率密度为12 W/m L,此时肉桂醛得率为0.69%。在乙醇溶液为提取剂时,影响肉桂醛得率的主要因素排序为:乙醇浓度>超声时间>料液比>超声功率密度,其最佳工艺条件为:乙醇浓度70%,料液比为1∶10(g/m L),处理时间60 min,功率密度为14 W/m L,此时肉桂醛得率达到2.36%。

The cinnamaldehyde in cinnamon was extracted by ultrasonic assistant method in this study. The effects of different process conditions on the extraction rate was discussed compared with water and ethanol solution.When the extractant was water,the main factors influencing the yield of cinnamaldehyde were the ratio of solid to liquid 〉ultrasonic time〉 power density of ultrasonic. The optimal extraction conditions were as follows：extracting 30 min with the ratio of solid to liquid 1 ∶ 12（g/mL）,operating by the power density of12 W/mL.In this condition,the yield of cinnamaldehyde was 0.69 %.When the extractant was ethanol solution,the main factors influencing the yield of cinnamaldehyde were ethanol concentration〉 ultrasonic time 〉solidliquid ratio〉 power density of ultrasonic.The optimal extraction conditions were as follows：extracting 60 min in ethanol concentration 70 % with the ratio of solid to liquid 1 ∶ 10（g/mL）,operating by the power density of14 W/mL.In this condition,the yield of cinnamaldehyde reached 2.36 %.