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
Authors: Karonen M, Parker J, Agrawal A, Salminen JP
Publisher: JOHN WILEY & SONS LTD
Publication year: 2010
Journal: Rapid Communications in Mass Spectrometry
Journal name in source: RAPID COMMUNICATIONS IN MASS SPECTROMETRY
Journal acronym: RAPID COMMUN MASS SP
Number in series: 21
Volume: 24
Issue: 21
First page : 3151
Last page: 3156
Number of pages: 6
ISSN: 0951-4198
DOI: https://doi.org/10.1002/rcm.4756
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.
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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