Dynamics of polymorphic transformations in palm oil, palm stearin and palm kernel oil characterized by coupled powder XRD-DSC. Journal of Oleo Science, 67 (6). pp. 737-744. ISSN 1347-3352 (2018)
Abstract
The in situ polymorphic forms and thermal transitions of refined, bleached and deodorized palm oil (RBDPO), palm stearin (RBDPS) and palm kernel oil (RBDPKO) were investigated using coupled X-ray diffraction (XRD) and differential scanning calorimetry (DSC). Results indicated that the DSC onset crystallisation temperature of RBDPO was at 22.6°C, with a single reflection at 4.2Å started to appear from 23.4 to 17.1°C, and were followed by two prominent exothermic peaks at 20.1°C and 8.5°C respectively. Further cooling to －40°C leads to the further formation of a β'polymorph. Upon heating, a of β'→βtransformation was observed between 32.1 to 40.8°C, before the sample was completely melted at 43.0°C.
| Item Type: | Article |
|---|---|
| Keywords: | Palm oil, Palm stearin, Palm kernel oil, Polymorphism, Thermal properties, Coupled XRD-DSC diffractometry |
| Taxonomy: | By Niche > Food Technology > Food Industry and Trade > Quality Control By Niche > Food Technology > Food Industry and Trade > Research By Niche > Food Technology > Food Industry and Trade > Technological Innovations |
| Local Content Hub: | Niche > Food Technology |
| Depositing User: | Mohd Hafiz Kasirun |
| Date Deposited: | 08 Dec 2023 08:41 |
| Last Modified: | 08 Dec 2023 08:41 |
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