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Conductivity analysis for free fatty acids in oil from glandless cottonseed
Author(s) -
Velasco James
Publication year - 1967
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/bf02908372
Subject(s) - gossypol , cottonseed oil , cottonseed , petroleum ether , chemistry , conductivity , titration , chromatography , food science , organic chemistry , biochemistry , extraction (chemistry)
Attempts to determine free fatty acids in petroleum ether extracts of cottonseed and crude cottonseed oil by conductivity measurements were unsuccessful due to interference of gossypol. With new strains of glandless cottonseed, which do not contain gossypol, analysis of free fatty acids by conductivity was successful on both the petroleum ether extracts and on the crude oil. An important advantage of conductivity over titration is that sample preparation is eliminated, since conductivity measurements are made on the oil extracts from the total oil determination.