Document Detail

LC-MSMS profiling of flavonoid conjugates in wild Mexican lupine, Lupinus reflexus.
MedLine Citation:
PMID:  20568784     Owner:  NLM     Status:  MEDLINE    
Profiles of flavonoid conjugates present in the root and leaf tissues of the Mexican wild lupine, Lupinus reflexus, were established using two LC-MSMS systems in the positive and negative ion modes. The ion trap mass spectrometer and quadrupole time-of flight instrument provided sequential MS(n) spectra and MSMS spectra with accurate m/z values of [M + H](+) and [M - H] (-) ions, respectively. Sixty-two flavone and isoflavone glycoconjugates were found and tentatively identified. Numerous isomeric or isobaric compounds with the same molecular mass could be differentiated. Isomeric di- and mono glucosides of biochanin A, genistein, 2'-hydroxygenistein, luteone, and 2,3-didehydrokievitone were distinguished on the basis of relative abundances of product ions. The studied flavonoid glycoconjugates were acylated with dicarboxylic aliphatic acids and their methyl esters at either the aglycone or glycosidic moiety.
Maciej Stobiecki; Anna Staszków; Anna Piasecka; Pedro M Garcia-Lopez; Francisco Zamora-Natera; Piotr Kachlicki
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of natural products     Volume:  73     ISSN:  1520-6025     ISO Abbreviation:  J. Nat. Prod.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-08-06     Completed Date:  2010-08-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7906882     Medline TA:  J Nat Prod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1254-60     Citation Subset:  IM    
Institute of Bioorganic Chemistry PAS, Noskowskiego 12/14, Poznan, Poland.
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MeSH Terms
Chromatography, Liquid
Flavonoids / chemistry,  isolation & purification*
Genistein / chemistry
Glycoconjugates / chemistry,  isolation & purification*
Lupinus / chemistry*
Molecular Structure
Plant Leaves / chemistry
Plant Roots / chemistry
Spectrometry, Mass, Electrospray Ionization
Reg. No./Substance:
0/Flavonoids; 0/Glycoconjugates; 446-72-0/Genistein; 491-80-5/biochanin A

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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