Separation of alkaloids from herbs using high-speed counter-current chromatography |
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Authors: | Fang Lei Liu Yuqin Yang Bin Wang Xiao Huang Luqi |
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Institution: | Shandong Analysis and Test Center, Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Academy of Sciences, Jinan, P. R. China. |
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Abstract: | Alkaloids represent a most widespread group of bioactive natural products. Because of their alkalinity and structural diversity, the fractionation and purification of the alkaloids from herbs can often present a number of practical difficulties using the conventional chromatographic techniques. High-speed counter-current chromatography (HSCCC) is a liquid-liquid partition chromatography with a support-free liquid stationary phase, and is gaining more and more popularity as a viable separation technique for bioactive compounds from natural resources. In the present review, focus is placed on the separation of alkaloids by both conventional HSCCC and pH-zone-refining counter-current chromatography (CCC) techniques from herbs. The review presents the separation of over 120 different alkaloid compounds from more than 30 plant species by the conventional HSCCC and pH-zone-refining CCC. Based on the data from the literature, the proper solvent systems for the separation of alkaloids by the conventional HSCCC and pH-zone-refining CCC are also summarized. |
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Keywords: | Alkaloids High‐speed counter‐current chromatography pH‐zone‐refining counter‐current chromatography Preparative chromatography Solvent system |
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