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Characterization of phenolic acids and flavonoids in dandelion ( Taraxacum officinale WEB. ex WIGG.) root and herb by high‐performance liquid chromatography/electrospray ionization mass spectrometry
Author(s) -
Schütz Katrin,
Kammerer Dietmar R.,
Carle Reinhold,
Schieber Andreas
Publication year - 2004
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1767
Subject(s) - dandelion , chemistry , taraxacum officinale , chromatography , electrospray ionization , mass spectrometry , high performance liquid chromatography , glycoside , electrospray , organic chemistry , pathology , medicine , alternative medicine , traditional chinese medicine
Phenolic acids and flavonoids were extracted from a dandelion ( Taraxacum officinale WEB. ex WIGG.) root and herb juice and characterized by high‐performance liquid chromatography/electrospray ionization mass spectrometry. Among the 43 compounds detected, 5 mono‐ and dicaffeoylquinic acids, 5 tartaric acid derivatives, 8 flavone and 8 flavonol glycosides were characterized based on their UV spectra and their fragmentation patterns in collision‐induced dissociation experiments. The predominant compound was chicoric acid (dicaffeoyltartaric acid). Furthermore, several caffeoylquinic acid isomers were distinguished in dandelion extracts for the first time by their specific mass spectral data. The present study reveals that even more quercetin glycosides were found in dandelion than hitherto assumed. The occurrence of di‐ and triglycosylated flavonoids in particular has not yet been described. This paper marks the first report on HPLC‐DAD/ESI‐MS n investigations of phenolic compounds in dandelion. Copyright © 2004 John Wiley & Sons, Ltd.