酸枣仁皂苷的不同提取与纯化工艺对比研究

对不同酸枣仁提取与纯化工艺进行对比,以提高酸枣仁皂苷含量和纯度。以酸枣仁皂苷A的含量为各浸膏皂苷含量及纯度的评价指标,采用显色法/紫外-可见分光度法进行检测。正丁醇萃取后,采用氨洗或硅胶分配色谱法进行纯化,计算各提取纯化方法所得浸膏的皂苷含量和纯度。回流提取法中,其提取、正丁醇萃取物、氨洗或硅胶分配色谱出膏率分别为16.28%,30.52%,54.01%,54.06%,纯度分别为17.91%,35.43%,54.12%,63.92%;微波提取法对应出膏率分别为12.24%,26.09%,57.60%,55.97%,纯度分别为15.49%,38.11%,58.01%,65.10%。回流法出膏率较微波提取法高,但微波提取物最终纯度较高;硅胶分配色谱法纯化效果优于氨洗;得到纯度65.10%的酸枣仁皂苷。

Comparison about extraction and purification of Jujuboside