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Comparative thermal characteristics and fatty acid composition of mono- and diacylglycerols of lard and some commercial emulsifiers

A., Nasyrah and Marikkar, Jalaldeen Mohamed Nazrim and Mat Hashim, Dzulkifly (2014) Comparative thermal characteristics and fatty acid composition of mono- and diacylglycerols of lard and some commercial emulsifiers. International Journal of Food Properties, 17 (5). pp. 1116-1125. ISSN 1094-2912; ESSN: 1532-2386

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Abstract

A study was carried out to compare the fatty acid composition and thermal profiles of mono- and diacylglycerols of six commercial emulsifiers, coded as E1, E2, E3, E4, E5, and E6, purchased from different manufacturers with those of the same derived from lard. The lipid extraction from the commercial emulsifiers was done using the Soxhlet method and the isolation of individual mono- and diacylglycerols was carried out using a column chromatographic method. The isolated partial acylglycerols of lard and individual emulsifiers were subjected to fatty acid analysis by gas chromatography and thermal analysis by differential scanning calorimetry. A clear distinction between lard-based emulsifier and the commercial emulsifiers was achieved by the application of principal components analysis to the fatty acid data. According to thermal analysis, mono- and diacylglycerols of lard displayed significant differences from those of commercial mono- and diacylglycerols with respect to the thermal transitions in the cooling curves. This study concluded that partial acylglycerols of none of the commercial emulsifiers employed in this study displayed similarity to those of lard-based emulsifiers.

Item Type:Article
Keyword:Commercial emulsifiers; Diacylglycerol; Fatty acid; Monoacylglycerol; Principal components analysis; Thermal analysis
Faculty or Institute:Faculty of Biotechnology and Biomolecular Sciences
Halal Products Research Institute
Publisher:Taylor & Francis
DOI Number:10.1080/10942912.2012.694948
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/10942912.2012.694948
ID Code:36829
Deposited By: Nabilah Mustapa
Deposited On:02 Jun 2015 21:46
Last Modified:27 Aug 2015 11:27

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