Physico-chemical properties of various palm-based diaclyglcyerol oils in comparison with their corresponding palm-based oils

• Main Authors: Saberi, Amir Hoessein, Beh, Boon Kee, Lai, Oi Ming, Miskandar, Mat Sahri
• Format: Article
• Language: English
• Published: Elsevier BV 2011
• Online Access: http://psasir.upm.edu.my/id/eprint/22336/1/Physico-chemical%20properties%20of%20various%20palm-based%20diaclyglcyerol%20oils%20in%20comparison%20with%20their%20corresponding%20palm-based%20oils.pdf; http://psasir.upm.edu.my/id/eprint/22336/; http://www.sciencedirect.com/science/journal/03088146/127/3

Palm-based diacylglycerol (P-DAG) oils were produced through enzymatic glycerolysis of palm kernel oil (PKO), palm oil (PO), palm olein (POL), palm mid fraction (PMF) and palm stearin (PS). High purity DAG (83–90%, w/w) was obtained and compared to palm-based oils (P-oil) had significantly (P < 0.05) different fatty acid composition (FAC), iodine value (IV) and slip melting point (SMP). Solid fat content (SFC) profiles of P-DAG oils as compared to P-oils had less steep curves with lower SFC at low temperature range (5–10 °C) and the higher complete melting temperatures. Also, P-DAG oils in contrast with P-oils showed endothermic as well as exothermic peaks with higher transition temperatures and significantly (P < 0.05) higher crystallisation onsets, heats of fusion, and heats of crystallisation. Crystal forms for P-DAG oils were mostly in the β form.