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Characterization of gingerol‐related compounds in ginger rhizome ( Zingiber officinale Rosc.) by high‐performance liquid chromatography/electrospray ionization mass spectrometry
Author(s) -
Jiang Hongliang,
Sólyom Anikó M.,
Timmermann Barbara N.,
Gang David R.
Publication year - 2005
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.2140
Subject(s) - chemistry , zingiber officinale , chromatography , gingerol , rhizome , electrospray ionization , mass spectrometry , tandem mass spectrometry , electrospray , high performance liquid chromatography , liquid chromatography–mass spectrometry , traditional medicine , medicine
This study sought to determine the utility of liquid chromatography/electrospray ionization tandem mass spectrometry (LC/ESI‐MS/MS) coupled with diode array detection in identifying gingerol‐related compounds from crude extracts of ginger rhizome. The fragmentation behaviors of compounds in both (−)‐ and (+)ESI‐MS/MS were used to infer and confirm the chemical structures of several groups of compounds, including the gingerols, methylgingerols, gingerol acetates, shogaols, paradols, gingerdiols, mono‐ and diacetyl gingerdiols, and dehydrogingerdiones. Diode array detection at different wavelengths was used to confirm MS/MS‐based identification. In total, 31 gingerol‐related compounds were identified from the methanolic crude extracts of fresh ginger rhizome in this study. Three of these compounds were found to be new compounds. This study demonstrated that LC/ESI‐MS/MS is a powerful on‐line tool for identification of gingerol‐related compounds, especially for thermally labile compounds that cannot be readily detected by GC/MS analysis. Copyright © 2005 John Wiley & Sons, Ltd.