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Methods for the determination of cyclopropenoid fatty acids. IV. Application of the step‐wise HBr titration method to the analysis of refined and crude cottonseed oils
Author(s) -
Harris J. A.,
Magne F. C.,
Skau E. L.
Publication year - 1964
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/bf02667026
Subject(s) - titration , cottonseed oil , hydrogen bromide , chemistry , cottonseed , adsorption , organic chemistry , chromatography , bromide , acetone , food science , bromine
A method is described for the determination of cyclopropenoid fatty acids in refined and crude cottonseed oils to within 0.01%. It is based upon a stepwise hydrogen bromide titration at 3C and 55C after removal of interfering substances by adsorption on activated alumina. Highly oxidized cottonseed oils first must be converted to methyl esters.