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Determination of major triacylglycerol components of polyunsaturated specialty oils using matrix-assisted laser desorption/ ionization time-of-flight mass spectrometry

✍ Scribed by F. O. Ayorinde; B. E. Eribo; K. V. Balan; J. H. Johnson Jr.; L. W. Wan

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
79 KB
Volume
13
Category
Article
ISSN
0951-4198

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✦ Synopsis

Five specialty oils; flaxseed, walnut, sesame, grapeseed and hazelnut, have been analyzed by matrix-assisted laser desorption ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS). a-Cyano-4hydroxycinnamic acid, dissolved in acetonitrile/tetrahydrofuran, was used as the matrix. The MALDI-TOF mass spectra produced only sodiated triacylyglycerol molecules [M Na] . The flaxseed oil contained ten major triacylglycerols (TAGs) which include triolein (OOO), linoleoyldioleoylglycerol (OOL), dilinoleoyloleoylglycerol (OLL), trilinolein (LLL), linolenoyldilinoleoylglycerol (LLLn), dilinolenoyllinoleoylglycerol (LLnLn), trilinolenin (LnLnLn), dilinoleoylpalmitoylglycerol (PLL), linolenoyllinoleoylpalmitoylglycerol (PLLn), and dilinolenoylpalmitoylglycerol (PLnLn).

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