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  1. Catechin-3-0-rhamoside chain procyanidins from mangrove bark

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    Author(s): Suminar Achmadi; Gustini Syahbirin; Elvin T. Chonng; Richard W. Hemingway
    Date: 1994
    Source: Phytochemistry 35(1):217-219
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (521 KB)

    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.

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    Citation

    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

    Keywords

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

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