食品科学 ›› 2005, Vol. 26 ›› Issue (10): 165-169.

• 分析检测 • 上一篇    下一篇

分光光度法测定苦瓜总皂甙含量

 徐斌, 董英   

  1. 江苏大学生物与环境工程学院
  • 出版日期:2005-10-15 发布日期:2011-09-25

Determination on Total Saponins of Momordica Charantia L. by Spectrophotometry

 XU  Bin, DONG  Ying   

  1. School of Biological and Environmental Engineering, Jiangsu University
  • Online:2005-10-15 Published:2011-09-25

摘要: 用甲醇回流浸提苦瓜总甙,并经硅胶柱分离制备单体皂甙MomordicosideA。以MomordicosideA为标样,选择波长546nm,采用分光光度法,建立了苦瓜总皂甙含量测定方法。实验结果表明:全苦瓜干粉中总皂甙质量分数为0.0432%;标准曲线下,皂甙含量自40μg到200μg呈线形关系,回归方程为A=0.0058C-0.1125(R2=0.9994);加样回收率为102.72%,RSD为3.99%。本法操作简便、快速、准确,可作为苦瓜原料及苦瓜制品质量评价方法。

关键词: 苦瓜, 总皂甙, 苦瓜甙A, 分光光度法, 测定

Abstract: A method for the determination on total saponins of Momordica charantia L. was established: using MeOH by continuous thermal reflux to extract its total saponins, taking mordicoside A as standard sample, selecting 546nm wavelength and by spectrometric method. The results showed that the Total Saponins accounted for 0.0432% of the dried powder of Momordica charantia L. And the regression equation within the range of the standard sample concentration in 40~200μg was (A=0.0058C-0.1125) with a good linearity (R2=0.9994).The average recovery rate was 102.72% and RSD =3.99%.The method is simple, rapid and accurate and suitable for the quality evaluation of Momordica Charantia L. material and products.

Key words: Momordica charantia L., total saponins, Mordicoside A, spectrometric method, determination