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Regiospecific analysis of Mono and Diglycerides in Glycerolysis products by GC x GC TOF-MS.


Citation

Indrasti, Dias and Che Man, Yaakob and Sung, Tong Chin and Mustafa, Shuhaimi and Mat Hashim, Dzulkifly and Abdul Manaf, Marina (2010) Regiospecific analysis of Mono and Diglycerides in Glycerolysis products by GC x GC TOF-MS. Journal of the American Oil Chemists' Society, 87 (11). pp. 1255-1262. ISSN 0003-021X; ESSN:1558-9331

Abstract

Comprehensive bidimensional gas chromatography coupled with time-of-flight mass spectrometry (GC × GC-TOF-MS) was used for the characterization of regiospecific mono- and diglycerides (MG-DG) content in the glycerolysis products derived from five different lipids included lard (LA), sun flower seed oil (SF), corn oil (CO), butter (BU), and palm oil (PA). The combination of fast and high temperature non-orthogonal column set namely DB17ht (6 m × 0.10 mm × 0.10 μm) as the primary column and SLB-5 ms (60 cm × 0.10 mm × 0.10 μm) as the secondary column was applied in this work. System configuration involved high oven ramp temperature to obtain precise mass spectral identification and highest effluent’s resolution. 3-Monopalmitoyl-sn-glycerol (MG 3-C16) was the highest concentration in LA, BU and PA while monostearoyl-sn-glycerol (MG C18) in CO and 1,3-dilinoleol-rac-glycerol (DG C18:2c) in SF. Principal component analysis accounted 82% of variance using combination of PC1 and PC2. The presence of monostearoyl-sn-glycerol (MG C18), 3-Monopalmitoyl-sn-glycerol (MG 3-C16), 1,3-dilinoleol-rac-glycerol (DG C18:2c), 1,3-dipalmitoyl-glycerol (DG 1,3-C16), and 1,3-dielaidin (DG C18:1t) caused differentiation of the samples tested.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
DOI Number: https://doi.org/10.1007/s11746-010-1614-x
Publisher: Springer Verlag
Keywords: Monoglycerides; Diglycerides; Comprehensive two-dimensional gas chromatography; GC x GC; Time-of-flight; Mass spectrometry.
Depositing User: Nur Farahin Ramli
Date Deposited: 04 Dec 2013 01:42
Last Modified: 23 Sep 2015 08:14
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s11746-010-1614-x
URI: http://psasir.upm.edu.my/id/eprint/24047
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