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Factors which affect the stability of highly unsaturated fatty acids. I. Differences in the oxidation of conjugated and nonconjugated linoleic acid
Author(s) -
Allen R. R.,
Jackson A.,
Kummerow F. A.
Publication year - 1949
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/bf02749501
Subject(s) - autoxidation , chemistry , peroxide , oxygen , conjugated system , linoleic acid , conjugated linoleic acid , organic chemistry , hydrogen peroxide , fatty acid , polymer
Summary The autoxidation of Δ 9, 12 and Δ 10, 12 methyl linoleate or the acids of these methyl esters was carried out under various conditions and the changes in characteristics compared by the removal of small samples at selected intervals of time. The results indicated that during the initial stages of autoxidation of Δ 9, 12 methyl linoleate at 30°C. all of the oxygen could be demonstrated as peroxide, oxygen. On the other hand, no peroxide oxygen was former until the Δ 10, 12 methyl linoleate had been oxidized for more than 100 hours. Furthermore, it was suggested that oxygen at room temperature was as effective in rearranging the CH:CH CH 2 CH:CH system as alkali hydroxide and high temperature.