摘要
目的优选黄芩的最佳提取工艺条件。方法以黄芩苷提取率为指标,乙醇浓度、回流时间及溶剂量为考察因素,采用星点设计-效应面优化法优选提取工艺条件,并进行预测分析。结果最优提取工艺条件为乙醇浓度45%、提取时间120min、溶剂用量4倍,二项式拟和复合相关系数较高r=0.9759,提取率预测值与理论值偏差率为-3.86%。结论星点设计-效应面法优选黄芩提取工艺方法简单、精密度高、预测性好。
Objective To obtain the optimal extraction process of Prunella vulgaris L.Methods With the dependent variables of ethanol concentration,reflux time and solvent fold,and dependent variable of the amount of baicalin,Central Composite Design/Response Surface Method was applied to optimize the reflux extraction process.Predictions were carried out by comparing the observed and predicted values.Results The optimum conditions of extraction process were 45% ethanol,2 hours for reflux,4 fold sovent.Regression coefficients of binomial fitting complex model was 0.9759.Bias between observed values and predicted values was-3.86%.Conclusion The optimum model is simple,precise and highly predictive.
出处
《中国中医药信息杂志》
CAS
CSCD
2009年第S1期33-34,共2页
Chinese Journal of Information on Traditional Chinese Medicine
关键词
星点设计-效应面法
黄芩
黄芩苷
Central Composite Design/Response Surface Method
Radix Scutellariae
baicalin
