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Detection of animal fat contaminations in sunflower oil by differential scanning calorimetry.


Citation

Mohammed Nazrim Marikkar, Jalaldeen and Mat Hashim, Dzulkifly and Mohd Zaki, Nor Nadiha and Che Man, Yaakob (2012) Detection of animal fat contaminations in sunflower oil by differential scanning calorimetry. International Journal of Food Properties, 15 (3). pp. 683-690. ISSN 1094-2912; ESSN: 1532-2386

Abstract

In this study, the use of differential scanning calorimetric heating thermograms was investigated to detect the presence of lard, beef tallow, and chicken fat as contaminants in sunflower oil. Sunflower oil samples spiked separately with lard, beef tallow, and chicken fat in levels ranging from 1 to 20% (w/w) were analyzed using high performance liquid chromatography to get triacyl-glycerol profiles and differential scanning calorimetric to obtain their heating profiles. The results showed that below 20% (w/w) level of contamination, both lard and beef tallow in sunflower oil can be detected using characteristic contaminant peaks appearing in the higher temperature region (0-50°C) of differential scanning calorimetric curve. However, chicken fat contamination in sunflower oil did not show any characteristic peaks in this region, but caused changes only in the exiting thermal transitions in the low temperature region of the differential scanning calorimetric curve. Based on the characteristic differences in the peak size, shape, and position, it was also possible to make a distinction between lard and beef tallow contaminations in sunflower oil.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Halal Products Research Institute
DOI Number: https://doi.org/10.1080/10942912.2010.498544
Publisher: Taylor & Francis
Keywords: Animal fats; DSC; Food contamination; Lard; Sunflower oil; Thermal analysis.
Depositing User: Nur Farahin Ramli
Date Deposited: 24 Feb 2014 05:13
Last Modified: 09 Oct 2015 07:49
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/10942912.2010.498544
URI: http://psasir.upm.edu.my/id/eprint/24097
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