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A Capillary GC Determination of Cyclopropenoid Fatty Acids in Cottonseed Oils
Author(s) -
PARK S. W.,
RHEE K. C.
Publication year - 1988
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1988.tb09308.x
Subject(s) - cottonseed , derivatization , cottonseed oil , chemistry , chromatography , gas chromatography , capillary gas chromatography , fatty acid , corn oil , fatty acid methyl ester , capillary action , organic chemistry , high performance liquid chromatography , food science , biodiesel , catalysis , materials science , composite material
A capillary gas chromatography (GC) method was studied for direct analysis for cyclopropenoid fatty acids (CPEFAs) as methyl esters. No thermal alterations were indicated in CPEFA methyl esters on a Supelcowax 10 or a DB‐5 capillary column like other fatty acid methyl esters (FAMES), which obviated a second derivatization. GC conditions are described for a complete separation and quantitation of CPEFAs in cottonseed oils. CPEFAs of cottonseed oils from various refining steps were analyzed by the method. The reliability of the method was demonstrated with over 95% recoveries of CPEFA methyl esters diluted in corn oil FAMES at various levels as low as 0.017%.