Physico-chemical properties of various palm-based diacylglycerol oils in comparison with their corresponding palm-based oils |
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| Authors: | Amir Hossein Saberi Beh Boon Kee Lai Oi-Ming Mat Sahri Miskandar |
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| Affiliation: | 1. Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;2. Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;3. Malaysian Palm Oil Board, No. 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia |
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| Abstract: | 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. |
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| Keywords: | Palm-based diacylglycerol oils Physico-chemical properties Diacylglycerol composition |
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