Inhibition of fish oil oxidation and the radical scavenging activity of New Zealand seaweed extracts

► Extracts form four algae (Ecklonia radiata, Macrocystis pyrifera, Champia sp. and Porphyra sp.) were assessed for anti oxidative capacity. ► Brown algae lipid-soluble seaweed extracts generally displayed greater antioxidative capacity than red algae species. ► E. radiata is the most likely antioxidant for use as an oil systems as it perform better than commercially BHT. ► Potential use of seaweed extracts as an antioxidant in marine oils has been demonstrated.