Preparative isolation and purification of four compounds from the Chinese medicinal herb rhizoma Anemarrhenae by high-speed counter-current chromatography.

Abstract

High-speed counter-current chromatography (HSCCC) was applied to the separation and purification of mangiferin, neomangiferin, cis-hinkiresinol and (-)-4'-O-methylnyasol from the Chinese medicinal herb rhizoma Anemarrhenae. Five hundred milligrams of crude extracts were separated by using n-butanol-acetic acid (1%) (1:1, v/v) as the two-phase solvent system… (More)

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