Changing on the Crystallization Kinetics of Chemically Interesterified Palm Olein based on Foubert Model

Nusantoro, Bangun P Changing on the Crystallization Kinetics of Chemically Interesterified Palm Olein based on Foubert Model. Changing on the Crystallization Kinetics of Chemically Interesterified Palm Olein based on Foubert Model. (Submitted)

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    Abstract

    In this research, RBD-Palm Olein was chemically interesterified and the changing of its crystallization kinetics was determined based on the Foubert model. The initial RBD-Palm Olein had an Iodine Value of 57.82 and this value was not significantly altered during chemical interesterification (CI). From the HPLC measurement, it was found that the olein sample before CI consisted mainly of 2 types of triacylglycerols/TAG, namely POP (dipalmitoyl-oleoyl-glycerol) and POO (palmitoyl-dioleoyl-glycerol). Both contributed 28.10% and 24.76% of the total acylglycerols in the sample. The olein also contained a considerable amount of POL (10.98%), PLP (10.01%), POS (5.44%) and OOO (4.20%). After CI, there was an alteration of TAG composition as follows: POP (26.09%), POO (22.17%), POL (11.58%), PLP (7.32%), POS (4.98%) and OOO (5.97%). The changing on chemical compositions of the olein after CI influenced its crystallization kinetics. Before CI, the crystallization kinetics of the olein could be described by Foubert model as follows: t_indF (0.468 h), aF (37.56 J/g), K (3.17 h-1) and n (15.83). After CI, the crystallization kinetics of the olein have been altered to t_indF (0.302 h), aF (41.63 J/g), K (2.46 h-1) and n (12.43); where t_indF (induction time), aF (maximum amount of crystallization), K (rate constant) and n (order of the reverse reaction). Keywords: palm olein, interesterification, crystallization, kinetics and Foubert model.

    Item Type: Article
    Subjects: 600 Teknologi
    Divisions: Fakultas Teknologi Industri > Teknik Kimia
    Depositing User: Wikan Pinandhito
    Date Deposited: 13 Jul 2011 10:50
    Last Modified: 13 Jul 2011 10:50
    URI: http://repository.upnyk.ac.id/id/eprint/557

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