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Separation and Production Methods of Caffeine Epigallocatechin Epicatechin Epigallocatechingallate and Epicatechingallate from Tea Leaves
Separation and Production Methods of Caffeine Epigallocatechin Epicatechin Epigallocatechingallate and Epicatechingallate from Tea Leaves
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机译:咖啡因表没食子儿茶素表儿茶素表没食子儿茶酸酯和表儿茶酸酯的分离及生产方法
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摘要
PURPOSE: Separation and production methods of caffeine, epigallocatechin, epicatechin, epigallocatechingallate, and epicatechingallate from tea leaves are provided, thereby simultaneously separating and producing the five kinds of materials. CONSTITUTION: Separation and production methods of caffeine, epigallocatechin, epicatechin, epigallocatechingallate, and epicatechingallate from tea leaves comprises the steps of: steaming tea leaves and drying them; heat-extracting the dried tea leaves or extracting the extract thereof with EtOH and freeze-drying it; subjecting the powdery extract to the sephadex column to obtain fractions of caffeine, epigallocatechin, epicatechin, epigallocatechingallate, and epicatechingallate; and subjecting the fractions to HPLC, removing an organic solvent and freeze-drying the HPLC fractions.
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