Document Detail


How to distinguish between cinnamoylshikimate esters and chlorogenic acid lactones by liquid chromatography-tandem mass spectrometry.
MedLine Citation:
PMID:  21915958     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In this study, liquid chromatography-tandem mass spectrometry (LC-MS(n) ; n = 2-3) has been used to characterize and distinguish chlorogenic acid lactones from cinnamoylshikimate esters. This is the first time when an LC-MS(n) method has been developed to distinguish between these two isomeric classes of compounds formed in particular in food processing from chlorogenic acids at elevated temperature through loss of water. The structures of regioisomeric chlorogenic acid lactones and shikimate esters have been assigned on the basis of LC-MS(n) patterns of fragmentation, relative hydrophobicity, and fragmentation analogy with the synthetic standards of dimethoxycinnamic, ferulic, and caffeic acid containing monoacyl chlorogenic acid lactones and shikimate esters. Copyright © 2011 John Wiley & Sons, Ltd.
Authors:
Rakesh Jaiswal; Marius Febi Matei; Frank Ullrich; Nikolai Kuhnert
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of mass spectrometry : JMS     Volume:  46     ISSN:  1096-9888     ISO Abbreviation:  J Mass Spectrom     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9504818     Medline TA:  J Mass Spectrom     Country:  England    
Other Details:
Languages:  eng     Pagination:  933-42     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 John Wiley & Sons, Ltd.
Affiliation:
School of Engineering and Science, Chemistry, Jacobs University Bremen, Campus Ring 8, Bremen, 28759, Germany.
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