微波法提取肉桂醛的正交实验
Orthogonal Experiment of Cinnamaldehyde Extraction by Microwave Method

本文采用微波提取法从肉桂中提取肉桂醛浸膏，并以HPLC法测定所得到的浸膏中肉桂醛含量。在微波处理保持85℃恒温基础上，通过L₉(3³)正交试验，考察了乙醇浓度、作用时间、和微波功率三个因素对提取效果的影响。优选肉桂醛在微波作用条件下的最佳提取工艺，并考察提取肉桂醛的效果。研究结果表明，微波作用对于从肉桂中提取肉桂醛具有较高的效率。采用这种提取方法，微波功率为主要影响因素，然后是作用时间，最后是乙醇浓度。最佳的提取工艺是提取溶剂为95%乙醇、微波作用时间为40 min、微波功率为600 W。
In this paper, cinnamaldehyde was extracted from Cinnamon by microwave abstraction, and the content of cinnamaldehyde in the extract was determined by HPLC. The effects of ethanol concen-tration, reaction time and microwave power on the extraction were investigated by L₉(3³) or-thogonal test at 85？C. The optimum extraction process of cinnamaldehyde from Cinnamomum cassia under microwave irradiation was studied. The results showed that microwave irradiation had high efficiency for cinnamaldehyde extraction from Cinnamomum cassia. With this method, microwave power is the main factor, then the action time, and finally the concentration of ethanol. The optimum extraction technology is the extraction solvent is 95% ethanol, the microwave time is 40 min and the microwave power is 600 W.