高速逆流色谱分离制备茶粕中茶皂素单体

目的：建立一种高效、快速的分离制备茶皂素单体的高速逆流色谱方法。方法：微波辅助提取茶皂素后，用D-101 大孔树脂初步纯化，所得粗品经高速逆流色谱分离纯化，乙酸乙酯- 正丁醇- 水(1:4:4，V/V，含体积分数3% 的乙酸)为两相溶剂系统，转速800r/min、流速1.5mL/min、检测波长267nm、进样量100mg，所得分离收集液经高效液相色谱法检测。结果：从茶皂素粗提物中分离得到纯度分别为99.1% 和94.5% 的两种茶皂素单体，经干燥称得其质量分别为11mg 和15mg。结论：该方法制备茶皂素单体简便、快速，所得产物的纯度高，为茶皂素的分离纯化提供了一种新途径。

Isolation and Preparation of Teasaponin Monomers from Tea Seed Cake by High-Speed Counter-current Chromatography

Objective: To develop a rapid and efficient method for preparing teasaponin monomers from tea seed cake using preparative high-speed counter-current chromatography (HSCCC). Methods: A crude extract rich in teasaponin monomers was obtained from tea seed cake by microwave-assisted extraction, and preliminarily purified by D-101 macroporous resin chromatography, followed by further HSCCC purification/fractionation with a binary phase system made up of ethyl acetate, n-butanol and 3% acetate (1:4:4, V/V) at a flow rate of 1.5 mL/min with rotation at 800 r/min under the conditions of 267 nm detection wavelength and 100 mg sample load. The final purification product was analyzed by HPLC. Results: Two teasaponin monomers with 99.1% and 94.5% purities were obtained after the HSCCC separation, and their dry weights were 11 mg and 15 mg, respectively. Conclusion: The proposed HSCCC method has the characteristics of simplicity, rapidity and high product purity, thereby providing a novel strategy for the separation of teasaponin monomers.