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- W1160350 abstract "Fractionation is accomplished by exploiting different crystallisation point oftriglyceride (TG). This theoretical basis exposes the importance of thermal behaviourof the palm oil on the success of the fractionation process as well as the use ofdifferential scanning calorimeter (DSC) for analysing some palm oil parameters. Inthis study, new methods to determine melting point (MP), cloud point (CP), iodinevalue (IV), and the composition of TG groups of palm oil were developed. Themethods were then applied for monitoring chemical transesterification.The appropriate running conditions of DSC for analysing palm oil wereheating and cooling rate of 5°C/min, holding time of 5 minutes and sample weight of 2.3 - 18.4 mg. Regression models to calculate MP, CP, and IV of standard methods were developed. For MP, the offset temperature from the heating thermogram wasused to develop the model, while for CP and IV, the models used onset temperatureand energy, respectively, from cooling thermogram. Using similar theoreticalbackground as in IV, models to calculate trisaturated and triunsaturated TGconcentration were developed. Regression models were developed to calculatetrisaturated TG using energy in cooling thermogram and triunsaturated TG usingenergy either in cooling or heating thermograms. The study have shown that all DSCmethods developed were more consistent than the standard AOCS methods.Redistribution of the fatty acids was achieved through chemicaltransesterification. Using response surface methodology, trisaturated TG obtainedfrom high performance liquid chromatography (HPLC) increased 2.1 times andtriunsaturated TG increased 1.88 times from the original. Using DSC, the increasewas 2.14 times for trisaturated and 1.92 times for triunsaturated." @default.
- W1160350 created "2016-06-24" @default.
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- W1160350 date "1999-01-01" @default.
- W1160350 modified "2023-09-27" @default.
- W1160350 title "Development and Applications of Differential Scanning Calorimetric Methods for Physical and Chemical Analysis of Palm Oil" @default.
- W1160350 hasPublicationYear "1999" @default.
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