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Title: Catechin-3-0-rhamoside chain procyanidins from mangrove bark

Author: Achmadi, Suminar; Syahbirin, Gustini; Chonng, Elvin T.; Hemingway, Richard W.;

Date: 1994

Source: Phytochemistry 35(1):217-219

Publication Series: Miscellaneous Publication

Description: Acid-catalysed cleavage of 'purified' condensed tannin isolates from Bruguiera gymnorrhiza (tancang) bark in the presence of phloroglucinol as a capture nucleophile gave, in addition to the expected procyanidin- and prodelphinidin-phloroglucinol adducts, 3-O-α-L-rhamnopyranosyl-(+)-catechin-(4α→2)-phloroglucinol, thus providing evidence for covalently bonded glycoside moieties in the chain extender units of mangrove bark tannins.

Keywords: Bruguiera gymnorrhiza, Rhizophoraceae, angrove, bark, condensed tannins, proanthocyanidins, 3-0, -L-rhamnopyranosyl-{+)-catechin-{4α, , 2)-phloroglucinol, flavan-3-ol glycosides

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Achmadi, Suminar; Syahbirin, Gustini; Chonng, Elvin T.; Hemingway, Richard W. 1994. Catechin-3-0-rhamoside chain procyanidins from mangrove bark. Phytochemistry 35(1):217-219


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