山楂叶黄酮物质提取方法的研究及结构分析

Studies on the Method of Flavones Extraction from Chinese Hawthorn Leaf & Analysis of the Basic Structure

通过热水、乙醇溶液和酸沉淀三种方法从山楂叶提取黄酮化合物，比较其提取物的得率和总黄酮化合物的含量等因素，进行综合评价认为，热水法是比较好的提取方法．通过用紫外光谱、颜色反应等对热水提取法得到的黄酮化合物进行了基本结构的分析．

The article introduced three different ways to extract flavone from Chinese hawthorn leaf. They are hot water extraction, alcohol extraction and acid precipitation. By comparing of the different ways it is found that the hot water extraction is a better way. The article analyzed the structure of total flavones with ultraviolet spectrum and colour test etc. Flavones extracted form Chinese hawthorn leaf by hot water extraction are analyzed for their basic structure.