多指标正交试验法优选小续命汤醇提组药材的乙醇提取工艺

目的：优选小续命汤醇提组药材的乙醇提取工艺。方法：以芍药苷、阿魏酸、防己生物碱的提取率以及醇提物的浸膏得率为综合评价指标，选取加醇量、提取次数、提取时间、乙醇体积分数为考察因素，采用正交试验法优选小续命汤的乙醇回流提取工艺。结果：最佳回流提取工艺为10倍量的70%乙醇，回流提取3次，每次1.5 h。结论：该优选工艺客观可行、合理稳定，可为小续命汤的产业化研究提供试验依据。

Optimization of Ethanol Extraction Technology for Xiao-Xu-Ming Decoction by Orthogonal Design with Multi-target

This study was aimed to optimize the ethanol extraction technology of Xiao-Xu-Ming (XXM) decoction. The extraction rates of paeoniflorin, ferulic acid, tetrandrine and yield extract were used as comprehensive evaluation indexes. The amount of ethanol, extraction times, extraction time and concentration of ethanol were selected as factors. The orthogonal design was used to optimize ethanol reflux extraction technology of XXM decoction. The results showed that the optimum extraction conditions were as follows: refluxing extracted 3 times with 10 folds, 70% ethanol, 1.5 h for each time. It was concluded that the optimized extraction process was objective, practical, reasonable and stable, which provided experimental basis for industrial production of XXM decoction.