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Phase behavior of palm oil in blends with palm-based diacylglycerol


Citation

Saberi, Amir Hoessein and Tan, Chin Ping and Lai, Oi Ming (2011) Phase behavior of palm oil in blends with palm-based diacylglycerol. Journal of the American Oil Chemists' Society, 88 (12). pp. 1857-1865. ISSN 0003-021X; ESSN: 1558-9331

Abstract

Phase behavior of palm oil (PO) in blends with different concentrations (10% intervals) of palm-based diacylglycerol oil (PO-DAG) was studied using the iso-solid diagram, solid fat content (SFC) with the hardness thermal protocol, DSC melting and crystallization curves, X-ray diffraction curves, and texture analysis (hardness). Minor eutectic effects were observed at around 20–50% PO-DAG in 20–50% SFC iso-lines. The phase behavior predicted by the iso-solid diagram as well as SFC with the hardness thermal protocol did not account for hardness variations observed between PO and PO blends with 10–40% PO-DAG. Nevertheless, the latter could be attributed to the corresponding DSC data as well as crystal polymorphism. However, as the concentration of PO-DAG increased from 40% to 100%, iso-line temperatures, SFC with the hardness thermal protocol, and also hardness were found to steadily increase. PO-DAG at 10% concentration was found to have a β′-stabilizing effect on the polymorphism of PO, while a β-tending effect was observed as the concentration of PO-DAG increased from 10% to 90%.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Food Science and Technology
Institute of Bioscience
DOI Number: https://doi.org/10.1007/s11746-011-1860-6
Publisher: Springer-Verlag
Keywords: Palm-based diacylglycerol; Phase behavior; Crystallization; Polymorphism; Hardness
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 02 Sep 2015 00:17
Last Modified: 18 Feb 2016 01:51
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s11746-011-1860-6
URI: http://psasir.upm.edu.my/id/eprint/22418
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