响应面法优化泽泻中23-乙酰泽泻醇B闪式提取工艺

采用响应面分析法优化得到23-乙酰泽泻醇B闪式提取的最佳工艺。采用单因素考察法,以23-乙酰泽泻醇B提取率为指标,考察乙醇浓度、液料比、提取次数、提取时间对23-乙酰泽泻醇B提取率的影响,并结合Box-Behnken试验设计和响应面分析方法对闪式提取泽泻的工艺参数进行优化,得到23-乙酰泽泻醇B闪式提取最佳工艺为80%乙醇、液料比12∶1、提取4次、提取时间114 s/次。通过响应面法优化得到的23-乙酰泽泻醇B闪式提取工艺,稳定、省时、高效,且具有可室温提取、无成分破坏的优点,可用于实际大生产。

Optimization of flash-type extraction technology of alisol B 23-acetate from Alismatis Rhizoma by response surface methodology

Response surface methodology was used to optimize and obtain the optimal flash-type extraction technology of alisol B 23-acetate from Alismatis Rhizoma.With the extraction rate of alisol B 23-acetate as an indicator, single-factor test was used to investigate the effect of ethanol volume fraction, liquid-solid ratio, extraction times and extracting time on the extraction rate of alisol B 23-acetate.The results were combined with Box-Benhnken design and response surface analysis to optimize the technology parameters for extraction process of Alismatis Rhizoma and obtain the optimal flash-type extraction technology under the following conditions: ethanol volume fraction 80%, liquid-solid ratio 12:1, extraction 4 times, 114 s/time. Flash-type extraction technology of alisol B 23-acetate by response surface methodology is stable, time-saving, efficient, and with the advantages of room temperature extraction and no component damage, so it can be used for massive production.