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Comparative study of matrix‐assisted laser desorption/ionization and gas chromatography for quantitative determination of cocoa butter and cocoa butter equivalent triacylglycerol composition
Author(s) -
Guyon F.,
Absalon Ch.,
Eloy A.,
Salagoity M. H.,
Esclapez M.,
Medina B.
Publication year - 2003
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.1185
Subject(s) - chemistry , chromatography , mass spectrometry , desorption , gas chromatography , matrix assisted laser desorption/ionization , composition (language) , matrix (chemical analysis) , organic chemistry , adsorption , linguistics , philosophy
The triacylglycerol (TAG) composition study of cocoa butter (CB) and cocoa butter equivalents (CBEs) has been performed by gas chromatography (GC) and matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOFMS). These two techniques provided comparable results. The advantage of the MALDI technique was the detection of each compound comprising the triacylglycerol classes (Cn). Moreover, comparison of the data obtained by these two techniques indicated that TAG relative percentages could be obtained quantitatively with the MALDI technique. These techniques have been applied for the composition determination of CB + CBE mixtures. Encouraging results showed that it is possible to quantify an admixture containing as little as 4% of CBE. Copyright © 2003 John Wiley & Sons, Ltd.