Journal of the American Oil Chemists Society

, Volume 44, Issue 4, pp 239-243

First online:

The influence of glyceride structure on the rate of autoxidation

  • K. G. RaghuveerAffiliated withIowa Agricultural and Home Economics Experiment Station
  • , E. G. HammondAffiliated withIowa Agricultural and Home Economics Experiment Station

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The rate of autoxidation of mixtures of triunsaturated glycerides and tridecanoin was decreased by randomization with sodium methoxide. A theory, based on the hexagonal packing of glyceride acyl chains in the molten state, was proposed which accounted for the observed efforts on the rate of autoxidation. The theory suggests that the concentration of the unsaturated fatty acids on the 2-position of glycerol should stabilize a fat towards autoxidation. This was confirmed with experiments on natural fats.