分光光度法测定苦瓜总皂甙含量

被引:27
作者
徐斌
董英
机构
[1] 江苏大学生物与环境工程学院
[2] 江苏大学生物与环境工程学院 江苏镇江
[3] 江苏镇江
关键词
苦瓜; 总皂甙; 苦瓜甙A; 分光光度法; 测定;
D O I
暂无
中图分类号
O657.3 [光化学分析法(光谱分析法)]; TS255.7 [果蔬加工品标准与检验];
学科分类号
070302 ; 081704 ; 083203 ;
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。
引用
收藏
页码:165 / 169
页数:5
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