期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1111, 期 1, 页码 21-31出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2006.01.103
关键词
diarytheptanoids; curcuminoids; curcumin; turmeric; Curcuma longa; rhizome; electrospray ionization; tandem mass spectrometry
资金
- NCCIH NIH HHS [3 P50 AT 000474-03, 5 P50 AT 000474-05] Funding Source: Medline
LC-ESI-MS/MS coupled to DAD analysis was used as an on-line tool for identification of diarylheptanoids in fresh turmeric rhizome extracts. Based on their mass spectra, from both negative and positive mode LC-ESI-MS/MS analysis, and supported by their DAD spectra, 19 diarylheptanoids were identified. Among these 19 compounds, curcumin, demethoxycurcumin, and bisdemethoxycurcumin were identified by comparing their chromatographic and spectral data with those of authentic standard compounds. The other diarylheptanoid compounds were identified or tentatively identified based on comparison to the three curcuminoids and each other. Twelve of the identified diarylheptanoids have not been previously reported from turmeric and six of these are new compounds. (c) 2006 Elsevier B.V. All rights reserved.
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