Abstract
Punicalagin, the main ingredient of pomegranate ( Punica granatum L.) husk, is a high molecular weight polyphenolic compound. It has shown remarkable pharmacological activities attributed in the presence of dissociable OH groups. To isolate punicalagin, previous methods included labor intensive and expensive solid phase extractions by column chromatography (C-18, polyamides, dellulose, Sephadex Lipophilic LH-20, Diaion HP20). High-speed countercurrent chromatography (HSCCC) was used for isolation and purification of punicalagin from pomegranate husk. Using preparative HSCCC about a 350 mg amount of the crude extract was separated, yielding 105 mg of punicalagin at a high-purity of over 92%. Eighty milligrams of gallic acid was simultaneously separated as another product, at a purity of 75%.
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