Determination of solid fat content of palm oil by wideline NMR

Determination of solid fat content of palm oil by wideline NMR

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Wideline nuclear magnetic resonance (NMR) has been widely used in the oil and fat industry for the determination of solid fat content (SFC). Its use in the palm oil industry is comparatively new. This paper examines in detail the procedure of SFC determination using a Newport Analyser MKIII. The instrument settings and the procedure of measurement are described. Reasons for each instrument settings chosen are discussed. For routine measurements the settings chosen are gatewidth at 1 1/2 G, R.F. level at 45 mu A, A.F. gain at 375 units and integration time at 320 s. Triolein is used as reference and samples are prepared by pipetting (1.5 plus or minus 0.1 g). Both the stepwise (series) and direct (parallel) procedures are compared. The former gives higher SFC values. Direct procedure is preferred as it is more flexible and less time consuming. The reproducibility of the measurement and the calibration of the instruments are also touched upon. Finally, comparison with other makes of NMR spectrometer is given

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Bibliographic Details
Main Authors: 100596 Oh, F.C.H., 48293 Berger, K.G., 107224 Pushparajah, E., 108428 Rajadurai, N. eds., 15747 Palm Oil Research Inst. of Malaysia, Kuala Lumpur (Malasia), 10819 Incorporated Society of Planters, Kuala Lumpur (Malasia), 35669 International Cenference on Palm Oil Product Technology in the Eighties Kuala Lumpur (Malasia) 22-24 Jun 1981
Format: biblioteca
Published: Kuala Lumpur (Malasia) 1983
Subjects:ELAEIS GUINEENSIS, ACEITES DE PALMAS, CONTENIDO DE LIPIDOS,
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