The antioxidant properties of ethoxyquin and of some of its oxidation products in fish oil and meal
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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 wordsEthoxyquin ethoxyquin dimer ethoxyquin nitroxide ethoxyquin oxidation products fish meal fish oil 2,6-dihydro-2,2,4-trimethyl-6-quinone imine Warburg apparatus
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