Premium
A rapid spectrophotometric method for determining the linoleic and linolenic acid components of soybean oil
Author(s) -
Collins F. I.,
Sedgwick V. E.
Publication year - 1956
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/bf02638200
Subject(s) - soybean oil , linoleic acid , reagent , chemistry , linolenic acid , glycerol , chromatography , methanol , food science , fatty acid , biochemistry , organic chemistry
Summary A reagent of 11% KOH‐glycerol was satisfactory for isomerizing soybean oil at 180°C. in open bottles in a forced‐draft air‐oven. A rapid means of analyzing soybean oil for linolenic and linoleic acid was developed. The optical densities of methanol solutions were measured at 268 mµ and 233 mµ in special cells with quartz windows and short light paths, and the percentages were calculated by means of a nomograph.