Published 2003

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Publication details

Journal : Journal of the American Oil Chemists Society , vol. 80 , p. 839–846 , 2003

International Standard Numbers :
Printed : 0003-021X
Electronic : 1558-9331

Publication type : Academic article

Contributors : Mjøs, Svein Are; Pettersen, jan

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Kjetil Aune
Chief Librarian


A rapid method for analysis of trans and cis FA in hydrogenated fats has been developed. The method is based on a single analysis by GC with IR detection. Multivariate partial least squares regression is applied on the IR spectra to predict the number of cis and trans double bonds. For each chain length the method provides information about the amount of the saturated FA, the amount of trans monoenes, the amount of cis monoenes, the amount of PUFA, and the average number of cis and trans double bonds in PUFA. The method has been validated by summing the values to a total trans value and total unsaturation. These sum values were compared with total trans unsaturation, as determined by AOCS method Cd 14-95, and iodine value, as determined by AOCS Cd 1d-92.