Journal of the American Oil Chemists Society

, Volume 69, Issue 8, pp 806–809

The antioxidant properties of ethoxyquin and of some of its oxidation products in fish oil and meal

  • Snorri Thorisson
  • Frank Gunstone
  • Roy Hardy
Article

Abstract

Ethoxyquin is an effective antioxidant for both fish oil and fish meal but its antioxidant activity often follows an initial burst of pro-oxidant activity. Some oxidation products of ethoxyquin are shown to be powerful antioxidants as determined from measurements by the Warburg manometric technique. Of the compounds examined, 2,6-dihydro-2,2,4-trimethyl-6-quinone imine and ethoxyquin nitroxide showed marked antioxidant activity.

Key words

Ethoxyquin ethoxyquin dimer ethoxyquin nitroxide ethoxyquin oxidation products fish meal fish oil 2,6-dihydro-2,2,4-trimethyl-6-quinone imine Warburg apparatus 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© American Oil Chemists’ Society 1992

Authors and Affiliations

  • Snorri Thorisson
    • 1
  • Frank Gunstone
    • 1
  • Roy Hardy
    • 2
  1. 1.Chemistry DepartmentThe University of St. AndrewsFifeUnited Kingdom
  2. 2.The Torry Research StationAberdeenUnited Kingdom
  3. 3.Icelandic Fisheries LaboratoryReykjavikIceland

Personalised recommendations