Review article - Peer-reviewed, 2019
Relationship between lipid and protein oxidation in fish
Hematyar, Nima; Rustad, Turid; Sampels, Sabine; Dalsgaard, Trine KastrupAbstract
Reactive oxygen species (ROS) are generated in all aerobic organisms. Free radicals are highly reactive ROS that cause damage to biological materials. Fish is rich in polyunsaturated fatty acids, and hence, very prone to lipid peroxidation. Both lipid and protein oxidations are important for quality loss during storage of fish, with high impact on taste and texture. Also, there are interactions between protein and secondary lipid oxidation products (aldehydes) that occur in foods because the oxidation products from one reaction can further react with both lipids and proteins respectively. This review focuses on the mechanisms and pathways of the lipid and protein oxidation and their possible relationship. Additionally, the target amino acids and final impacts of this relationship were considered. We propose that the products of lipid oxidation promote protein oxidation in fish rather than the other way around specially, during frozen storage, while during postmortem changes protein oxidation dominates. Finally, it seems that, secondary products of lipid oxidation might have more impact on the functionality of proteins from both Michael addition and Schiff base reaction rather than lipid hydroperoxides and lipid radical transfer.Keywords
fish; free radicals; interaction; Lipid oxidation; protein oxidationPublished in
Aquaculture Research2019, volume: 50, number: 5, pages: 1393-1403
Authors' information
Hematyar, Nima
University of South Bohemia in České Budějovice
Rustad, Turid
Norwegian University of Science and Technology (NTNU)
University of South Bohemia in České Budějovice
Swedish University of Agricultural Sciences, Department of Molecular Sciences
Kastrup Dalsgaard, Trine
Aarhus University
UKÄ Subject classification
Food Science
Publication Identifiers
DOI: https://doi.org/10.1111/are.14012
URI (permanent link to this page)
https://res.slu.se/id/publ/99271