RESEARCH ARTICLE

Journal of Oil Palm Research Vol. 1 No. 2 1989 Dec, p. 103-108

COMPARISON OF PALM KERNEL STEARIN SFC MEASUREMENTS AT 30 DEGREE CALCIUS BY WIDELINE AND PULSE NMR

OH FLINGOH C H AND ZUKARINAH KAMARUDDIN*

ABSTRACT

The solid fat content (SFC) of palm kernel stearin was measured using both wideline and pulse nuclear magnetic resonance (NMR) spectrometers. For pulse NMR both the Direct Display Method and the Indirect Calculation Method were applied. The results obtained by the two methods showed large discrepancies at 30°C. The Direct Display Method consistently gave significantly lower values at the critical temperature of 30°C than did the Indirect Calculation Method, while the latter gave results comparable to those by the wideline NMR Method. There were no significant differences at the other temperatures. It is recommended that either the Indirect Calculation Method of pulse NMR or wideline NMR be used in the measurement of the SFC of palm kernel stearin.

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*Palm Oil Research Institute of Malaysia (PORIM)
PO Box 10620,
50721 Kuala Lumpur,
Malaysia