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Compositional and thermal characteristics of palm olein-based diacylglycerol in blends with palm super olein


Ng, Siou Pei and Lai, Oi Ming and Abas, Faridah and Lim, Hong Kwong and Beh, Boon Kee and Ling, Tau Chuan and Tan, Chin Ping (2014) Compositional and thermal characteristics of palm olein-based diacylglycerol in blends with palm super olein. Food Research International, 55. pp. 62-69. ISSN 0963-9969; ESSN: 1873-7145


Palm olein-based diacylglycerol (POL-DAG) was blended with palm super olein (POoo) in various concentrations (10–90%), with increments of 10% (wt/wt) POL-DAG. The physical and chemical characteristics, i.e., iodine value, acylglycerol content, fatty acid composition, melting and crystallization profiles and solid fat content, for POL-DAG, POoo and their binary blends were evaluated. The mid-infrared FTIR was used to determine the absorption bands of the different concentrations of the oil blends. Only slight differences of FAC and IV were observed. POL-DAG:POoo blends showed significant changes (p < 0.05) in DAG content and decreases in TAG content with increasing POL-DAG content. The DSC thermograms showed that the addition of different concentrations of POL-DAG changed the melting and crystallization behavior of the oil blends (POL-DAG:POoo). The crystallization onset point increased (p < 0.05) with an increasing POL-DAG concentration (10–90%). POL-DAG has the same absorption bands as POoo, with the exception of several minor peaks that appeared at (I) 2954 cm− 1, (II) 1267 cm− 1, (III) 1199 cm− 1, (IV) 1222 cm− 1 and (V) 966 cm− 1. This study will provide essential information for the palm oil industry to identify the most suitable POL-DAG blends with desirable physicochemical properties for food application purposes.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Food Science and Technology
DOI Number: https://doi.org/10.1016/j.foodres.2013.10.035
Publisher: Elsevier
Keywords: Fat blends; Melting and crystallization; Palm olein-based diacylglycerol; Palm super olein; Acylglycerol
Depositing User: Nabilah Mustapa
Date Deposited: 22 May 2015 12:12
Last Modified: 03 Dec 2015 06:55
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.foodres.2013.10.035
URI: http://psasir.upm.edu.my/id/eprint/36866
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