Optimization of Extraction Method of Triterpenoids from Artemisia selengnesis Turcz

[Objectives]The research aimed to optimize the extraction method of triterpenoids from A. selengnesis. [Methods]The ultrasonic extraction of triterpenoids in A. selengnesis was optimized by single factor analysis( including infusion time,ethanol concentration,ultrasonic power,extraction time,and liquid-solid ratio) and response surface method. [Results]The optimum extracting process of triterpenoids was as follows: infusion time of 65 min,ethanol concentration of 80%,ultrasonic power of 275 W,extraction time of 30 min,and liquid-solid ratio of 34 m L/g. Under the optimized condition,the extraction content of triterpenoids reached( 18. 26 ± 0. 10) mg/g. [Conclusions] The optimized extraction had a good modal on practice in developing and utilization.

藜蒿中三萜类化合物的提取方法优化

通过对藜蒿(Artemisia Selengnesis Turcz.)的浸泡时间、乙醇体积分数、超声功率、超声时间、液料比等单因素试验与响应面试验,优化藜蒿中三萜类化合物的提取工艺。结果表明,最优提取工艺为样品常温浸泡65 min,超声30 min,80%(V/V)乙醇提取,超声功率257 W,液料比34 m L/g。在此条件下提取三萜类化合物含量达(18.26±0.10)mg/g。该提取模型拟合效果较好,具有实际应用价值。