响应面法优化五桠果叶木姜子挥发油的提取工艺研究

Optimization of Extraction Technique of Litsea dilleniifolia P.Y.Paiet p.h.Huang Volatile oil by Response Surface Method

利用响应面分析法优化超声波辅助提取五桠果叶木姜子挥发油的工艺条件。以提取的料液比、提取时间、提取温度为随机因子,在单因素试验的基础上,进行三因素三水平的Box-Behnken中心组合设计,采用响应面分析(Response surface analysis methodology)三个因素以及因素彼此间的交互作用对五桠果叶木姜子挥发油提取率的影响。结果超声波法提取五桠果叶木姜子挥发油的优化条件为:料液比1∶14(g/m L),提取温度50℃,提取时间40 min,提取率为2.776%,与预测值的相对误差为0.68%。

By using response surface methodology to optimize the extraction process of ultrasonic extraction volatile oil from Litsea dilleniifolia PYPaiet PH.Huang. The extracted liquid ratio, extraction time and temperature is the random factors, three factors three levels of the Box - Behnken central composite design, by using the Response surface analysis （the Response surface analysis methodology） three factors affect wood son a volatile oil extraction yield. The results is that the ultrasonic extraction of five fork fruit volatile oil of excellent son, the optimal conditions for： material liquid than 1：14 （g/mL）, extraction temperature 50 ℃, the extraction time is 40.00 min, extraction solvent for anhydrous ethanol, under the condition of the optimal extraction process, measuring the actual withdrawal rate is 2.776 %, and the relative error of predicted value of 0.68 %.