天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (9): 1523-1526.

• 开发研究 • 上一篇    下一篇

八角莽草酸不同纯化方法的比较研究

舒 馨*,刘雄民,赵凤妹   

  1. 广西大学 化学化工学院,南宁 530004
  • 出版日期:2014-09-30 发布日期:2014-11-02

Comparative Study on Different Purification Methods of Shikimic Acid from Illicium verum Hook.f.

SHU Xin*, LIU Xiong-min, ZHAO Feng-mei   

  1. College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China
  • Online:2014-09-30 Published:2014-11-02

摘要: 利用重结晶、醇沉和柱层析等方法对八角莽草酸进行提取纯化,并比较了不同方法的纯化结果。结果表明:乙醇沉淀法的纯化效果明显,醇沉后进行硅胶柱或大孔树脂柱层析分离纯化莽草酸的效果都大为提高,纯度都达到82%以上。利用一种新的洗脱体系乙酸乙酯和甲醇的混合溶剂,用于硅胶柱层析法纯化莽草酸,能将莽草酸与其近似物很好地分离,纯度达到94.6%,纯化的效果优于大孔树脂柱。最终确定了高效提取纯化莽草酸的工艺流程:微波提取——醇沉法初步纯化——柱层析法进一步纯化。

关键词: 莽草酸, 纯化, 醇沉法, 柱层析法

Abstract: In this study,different methods,including recrystallization,ethanol precipitation and column chromatography,for the purification of shikimic acid from Illicium verum Hook.f. (star anise) were explored and compared.The results showed that ethanol precipitation method had good purification effect.After the step of ethanol precipitation,the purities of shikimic acid were greatly improved and reached to >82% after further purification using silica gel or macroporous resin column chromatography.A new elution system using in silica gel column chromatography was established,which contained ethyl acetate and methanol solution.Under the new elution system,silica gel column chromatography successfully separated shikimic acid and its structurally-similar compounds.The purity of the purified shikimic acid was 946%,showing a better purification effect than that of macroporous resin.Finally,a high efficient process for the extraction and purification of shikimic acid was obtained as follows:microwave extraction-preliminary purification with ethanol precipitation-further purification with column chromatography.

Key words: shikimic acid, purification, ethanol precipitation, column chromatography

中图分类号: 

O652