Determinations of the peroxidative susceptibilities of cod liver oils by a newly-developed 1H NMR-based method: resistance of an antioxidant-fortified product isolated from pre-fermented sources.

ABSTRACT: OBJECTIVE:To explore the molecular composition and antioxidant status of four natural (unrefined) cod liver oil (CLO) products, three of which (Products 1-3) were non-fermented, whilst one (Product 4) was isolated from pre-fermented cod livers, and hence was naturally antioxidant-fortified. Potential antioxidants and aldehyde-scavenging agents were determined by recommended and/or 1H NMR methods; peroxyl radical-specific oxygen radical absorbance capacity (ORAC) values were measured fluorimetrically. The activities of such antioxidants were also investigated by assessing the susceptibilities/resistivities of these CLOs to thermo-oxidation by 1H NMR analysis, which monitored the time-dependent evolution of aldehydic lipid oxidation products at 180 °C. RESULTS:Product 4 displayed much higher

SUBMITTER: Percival BC 

PROVIDER: S-EPMC7017492 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature