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Evaluation of the role of hydroperoxides in the formation of aldehydes during linoleate autoxidation

✍ Scribed by Makio Morita; Masako Tokita

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
448 KB
Volume
56
Category
Article
ISSN
0009-3084

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✦ Synopsis

The precursor role of hydroperoxides in the formation of aldehydes during linoleate autoxidation was evaluated. Unlabeled propyl linoleate containing each isomer of methyl linoleate [18,18,18-D3] hydroperoxide was autoxidized at 60Β°C without catalyst or with 10 "~ M copper catalyst. Unlabeled and D3-1abeled species of hexanal, 2-heptenal, 2-octenal and 2,4-decadienal were determined by chemical ionization gas chromatography-mass spectrometry. 9-Hydroperoxide played a comparatively important role in forming decadienal and octenal in the copper-eatalyzed oxidation but in other cases the precursor role of hydroperoxides was barely evident and was suggested to be only a minor one.

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