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Quercetin is a major phenolic compound in the Chinese medicinal herb. It has been proved to have many important pharmacological active compounds. To the best of our knowledge, this is the first paper to report that quertin exists in Anoectochilu roxburghii (wall) Lindl. The high-speed counter-current chromatography (HSCCC) was successfully applied to purify quercetin from the extracts of A. roxburghii...
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