Effect of water activity on autoxidation of methyl linoleate.

Gopalakrishna, A. G. and Prabhakar, J. V. (1986) Effect of water activity on autoxidation of methyl linoleate. Journal of Food Science and Technology, 23 (3). 152-157, 10 ref..

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Abstract

Methyl linoleate [prepared from safflower oil] supported on cellulose was autoxidized at different aw for 22 days at 30 degree C and the formation of peroxides and carbonyls was followed. Peroxide values (PV) were considerably higher at high aw (325 and 108 at 0.79 and 0.92 aw resp.) and were comparatively low at other aw (43-69 between aw 0.02 and 0.71). The total carbonyls, dicarbonyls and mnonocarbonyls were high at low aw 0.02 and 0.32 as compared to other aw although the PV range was almost similar. The keto and semialdehyde esters were low at all aw. The study indicates that the rates of peroxide formation and breakdown are not similar at any aw. The course of the secondary reactions also varies with the aw of the system.

Item Type:	Article
Uncontrolled Keywords:	LINOLEIC-ACID; methyl linoleate, aw & autoxidation of; OXIDATION-; MOISTURE-CONTENT; PEROXIDES-; methyl linoleate, aw & peroxides values of; CARBONYL-COMPOUNDS; methyl linoleate, aw & carbonyl compounds in
Subjects:	600 Technology > 08 Food technology > 19 Lipids-oils/fats
Divisions:	Lipid Science and Traditional Foods
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	11 Mar 2009 07:19
Last Modified:	28 Dec 2011 09:53
URI:	http://ir.cftri.res.in/id/eprint/6465

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