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In order to utilize and control the invasive weed, bioactive compounds from essential oil of Flaveria bidentis (L.) Kuntze were studied. Steam distillation extraction and one step high‐speed counter‐current chromatography were applied to separate and purify the caryophyllene oxide, 7,11‐dimethyl‐3‐methylene‐1,6,10‐dodecatriene, and caryophyllene from essential oil of Flaveria bidentis (L.) Kuntze...
Semipreparative high‐speed counter‐current chromatography (HSCCC) by time‐controlled collection method was successfully applied for isolation and purification of α‐terthienyl, 5‐(3‐buten‐1‐ynyl)‐2,2′‐bithienyl, and 5‐(3‐penten‐1‐ynyl)‐2,2′‐bithienyl from Flaveria bidentis (L.) Kuntze for the first time. The two‐phase solvent system composed of n‐hexane and acetonitrile at the volume ratio of 1:1 (v/v)...
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