title: Physico-chemical properties of various palm-based diacylglycerol oils in comparison with their corresponding palm-based oils.
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.
authors.affiliation: Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: Amir Hossein
authors.initials: AH
authors.lastname: Saberi
authors.affiliation: Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: Beh Boon
authors.initials: BB
authors.lastname: Kee
authors.affiliation: Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia. Electronic address: omlai@biotech.upm.edu.my.
authors.forename: Lai
authors.initials: L
authors.lastname: Oi-Ming
authors.affiliation: Malaysian Palm Oil Board, No. 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
authors.forename: Mat Sahri
authors.initials: MS
authors.lastname: Miskandar
keywords: Diacylglycerol composition; Palm-based diacylglycerol oils; Physico-chemical properties