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温度和酸的种类对人参二醇得率的影响

作  者:
张春红;李向高;张连学;曹蕊
单  位:
吉林农业大学中药材学院
关键词:
薄层扫描法;人参总皂苷;酸水解;人参二醇
摘  要:
目的研究温度和酸的种类对人参总皂苷酸水解的影响,从而确定人参二醇的最佳制备工艺。方法以人参总皂苷为原料,在规定温度分别以10%3种酸、50%乙醇溶液为溶剂,水浴回流水解4h,水解液回收乙醇后用氯仿萃取,氯仿层合并回收氯仿,残渣用甲醇溶解,用薄层扫描仪测定含量。结果80℃时,盐酸、硫酸和硝酸人参二醇得率分别为10.15%、8.81%和16.69%;90℃时,分别为1.80%、11.02%和2.14%;100℃时分别为0.47%、13.70%和2.35%。结论盐酸和硝酸温度越高,人参二醇含量反而降低;硫酸温度越高,人参二醇得率越高且纯度高。因此,人参二醇最佳的制备方法应为100℃、10%硫酸水解。
译  名:
Panaxdiol Content Determination of Ginsenosides Acid Hydrolysate with Thin-Layerchromatogram Scan Method
作  者:
ZHANG Chun-hong,LI Xiang-gao,ZHANG Lian-xue*,CAO Rui(College of Chinese Medicinal Material,Jilin Agricultural University,Changchun, 130118,China)
关键词:
thin-layer chromatogram scan method;ginsenosides;acid hydrolysis;panaxadiol.
摘  要:
objective studying effect of ginsenosides acid hydrolysis with different temperature and acid category to determine optimum preparative way of panaxdiol.Method at the prescriptive temperature and acid,ginsenosides was hydrolyzed 4 hours in water bath,hydrolyzate was extracted by chloroform after recovered alcohol,the chloroform was merged and was recovered,the residue was determined by thin-layer chromatogram scan method after dissolved withmethanol.Results panaxdiol rates hydrolyzed by hydrochloric acid,hydrogen nitrate and sulfuric acid were 10.15%、8.81%和16.69% at 80℃;1.80%、11.02%和2.14% at 90℃;0.47%、13.70%和2.35% at 100℃.Conclusion For hydrochloric acid and hydrogen nitrate,the rate of panaxadiol was less with the higher temperature.For sulfuric acid,the rate of panaxadiol was biger with the higher temperature.

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