【摘要】 目的筛选长春七总香豆素的最佳提取工艺。方法采用正交实验设计L9(34)考察乙醇浓度、乙醇用量、提取时间、提取次数4个因素对提取工艺的影响,以蛇床子素为对照品,用UV-1102型紫外-可见分光光度计测定总香豆素含量。结果长春七中总香豆素含量的最佳提取工艺为D3A3B2C1即:55%乙醇,5倍药材量乙醇体积,提取3次,每次1 h。结论本方法工艺合理,可为工业化大生产提供参考。更多还原

【Abstract】 Objective To select the maximal technology of extracting total cumarin from Radix Sesali.Method According to orthogonal test design L₉（3⁴）,observed effect on the technology of the four following factors-ethanol concentration,ethanol content,extracting time and number of extracting times.Then with substance of Fructus Cniidii as control product,determined content of total cumarin using UV-1102 ultraviolet-visible spectrophotometer.Result The best technology is D₃A₃B₂C₁,that is,55% ethanol,ethanol volume of five times the raw drugs,three times of extracting,and 1 hour a time.Conclusion the technology is rational as to be referential for industrialized production.更多还原