KMID : 1007519990080050285
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Food Science and Biotechnology 1999 Volume.8 No. 5 p.285 ~ p.289
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Isolation and Characterization of Angioteasin Converting Enzyme Inhibitors from Camellia sinensis L . and Their Chemical Structere Determination
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Lee Jin-Tae
An Bong-Jeun
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Abstract
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To investigate the hypertensive prevention, two novel condensed tannin compounds were isolated from Korean Camellia sinensis L. and their chemical structures were identified as B-2,3-O-gallate and prodelphinidin B-2,3,3¢¥-O-digallate by mechanical analysis. In the inhibitory effect of angiotensin converting enzyme (ACE), it showed that the B-ring of the gallyol or gallate compound in prodelphinidins increased the inhibitory effect of the enzyme. Prodelphinidin B-2,3,3¢¥-O-digallate inhibited about 84% at 50 ¥ìmole and showed a possibility to be used in functional food and pharmaceutical industries.
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