B3 Non-refereed article in a conference publication

First evidence of hexameric and heptameric ellagitannins in plants detected by liquid chromatography/electrospray ionisation mass spectrometry




AuthorsKaronen M, Parker J, Agrawal A, Salminen JP

PublisherJOHN WILEY & SONS LTD

Publication year2010

JournalRapid Communications in Mass Spectrometry

Journal name in sourceRAPID COMMUNICATIONS IN MASS SPECTROMETRY

Journal acronymRAPID COMMUN MASS SP

Number in series21

Volume24

Issue21

First page 3151

Last page3156

Number of pages6

ISSN0951-4198

DOIhttps://doi.org/10.1002/rcm.4756(external)


Abstract
Ellagitannins are bioactive plant polyphenols of which more than 500 individual compounds have been identified from plants. An ellagitannin-rich fraction was isolated by Sephadex LH-20 from Oenothera biennis (common evening primrose) leaves and roots and analysed by high-performance liquid chromatography/diode-array detection coupled to high-resolution mass spectrometry with an electrospray ionisation interface. The high-molecular mass ellagitannins were characterised by their UV spectra, molecular masses and mass spectral fragments. In addition to the previously reported dimers and trimers, an entire series of oligomeric ellagitannins from dimers to heptamers was characterised in both roots and leaves of O. biennis. This is the first report of natural ellagitannins larger than pentamers. Copyright (C) 2010 John Wiley & Sons, Ltd.



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