Preparative isolation and purification of phillyrin from the medicinal plant Forsythia suspensa by high-speed counter-current chromatography.
Forsythia suspensa (Thunb.) Vahl. has been used widely in traditional medicines to treat gonorrhea, erysipelas, inflammation, pyrexia and ulcer. It has also shown antioxidant activity, as well as antibacterial, antiviral, choleretic and antiemetic effects. A high-speed counter-current chromatography (HSCCC) method was developed for the preparative separation and purification of the bioactive molecule phillyrin from F. suspensa (Thunb.) Vahl. The crude phillyrin was obtained by extraction with 50% ethanol from the dried fruits of F. suspensa (Thunb.) Vahl. under sonication. Preparative HSCCC with a two-phase solvent system composed of n-hexane-ethyl acetate-ethanol-water (1:9:1:9, v/v/v/v) was successfully performed, and the components purified and collected were analyzed by high-performance liquid chromatography. The method yielded 5.6 mg phillyrin at 98.6% purity from 500 mg of the crude extract (1.2% phillyrin) with the recovery of 92% in a one-step separation.[1]References
- Preparative isolation and purification of phillyrin from the medicinal plant Forsythia suspensa by high-speed counter-current chromatography. Li, H.B., Chen, F. Journal of chromatography. A. (2005) [Pubmed]
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