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Comparative study of physical methods for lipid oxidation measurement in oils
Author(s) -
Yoon S. H.,
Kim S. K.,
Shin M. G.,
Kim K. H.
Publication year - 1985
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02541899
Subject(s) - bran , dielectric , rice bran oil , chemistry , polar , palm oil , chemical polarity , palm , extraction (chemistry) , refractive index , food science , analytical chemistry (journal) , chromatography , materials science , organic chemistry , molecule , raw material , physics , optoelectronics , astronomy , quantum mechanics
For the determination of lipid oxidation in oils, electrical, optical, spectroscopic and extraction methods were investigated using rice bran oil and doubly‐fractionated palm olein as model systems. The oxidized polar components and dielectric constant of rice bran oil increased very similarly with those of double‐fractionated palm olein. In the case of rice bran oil, all of the test methods were shown to possess good statistical correlations. Polar components, dielectric constant, refractive index and polymer content showed relatively better correlations. It was shown that diene and triene content determined by spectroscopic methods was not suitable for more saturated oils such as palm olein.