American Chemical Society
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A Simple Isolation Method for the Major Catechins in Green Tea Using High-Speed Countercurrent Chromatography

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journal contribution
posted on 2001-01-30, 00:00 authored by Dietmar Baumann, Sven Adler, Matthias Hamburger
An efficient protocol for the preparative purification of the major tea catechins (−)-epicatechin gallate (3) and epigallocatechin gallate (5) has been developed, employing liquid−liquid partitioning, high-speed countercurrent chromatography, and gel chromatography for final purification. The method is suitable for scale-up to significantly larger quantities.