View : 18 Download: 0

Identification of triacylglycerols containing two short-chain fatty acids at sn-2 and sn-3 positions from bovine udder by fast atom bombardment tandem mass spectrometry

Title
Identification of triacylglycerols containing two short-chain fatty acids at sn-2 and sn-3 positions from bovine udder by fast atom bombardment tandem mass spectrometry
Authors
Kim Y.H.So K.-Y.Limb J.-K.Jhon G.-J.Han S.-Y.
Ewha Authors
전길자한소엽임진경
SCOPUS Author ID
전길자scopus; 한소엽scopus; 임진경scopus
Issue Date
2000
Journal Title
Rapid Communications in Mass Spectrometry
ISSN
0951-4198JCR Link
Citation
vol. 14, no. 23, pp. 2230 - 2237
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Several triacylglycerol (TAG) molecular species, that contain two short-chain fatty acids (C4 to C8) at the sn-2 and sn-3 positions of the glycerol backbone, were isolated from bovine udder by using solvent extraction and silica gel column chromatography. Their structures were identified by fast atom bombardment (FAB) tandem mass spectrometry (MS/MS), based on the information obtained from collision-induced dissociation (CID) spectra of sodium-adducted molecules ([M + Na]+) of model TAG compounds which had been synthesized from glycerol and appropriate fatty acids. For each species, the relative positions of the three fatty acids on the glycerol backbone, as well as fatty acid composition and double-bond position in the fatty acyl group, were determined. A majority of sodium-adducted molecules observed in the FAB mass spectrum were mixtures of at least two components that have different fatty acid composition but the same molecular mass. In addition, all the components present in mixtures of all the species contain a long-chain fatty acid (C12 to C18) at the sn-1 position, a short-chain fatty acid (C4 to C8) at the sn-2 position, and a butyric acid uniquely at the sn-3 position. Copyright (C) 2000 John Wiley and Sons, Ltd.
DOI
10.1002/1097-0231(20001215)14:23&lt2230::AID-RCM156&gt3.0.CO2-0
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE