Post-mortem storage conditions and cooking methods affect long-chain omega-3 fatty acid content in Atlantic mackerel (Scomber scombrus)

Type Article
Date 2021-10
Language English
Author(s) Sardenne Fany1, Puccinelli Eleonora2, Vagner Marie1, Pecquerie Laure3, Bideau Antoine2, Le Grand Fabienne1, Soudant Philippe1
Affiliation(s) 1 : Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
2 : Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
3 : Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
Source Food Chemistry (0308-8146) (Elsevier BV), 2021-10 , Vol. 359 , P. 129828 (6p.)
DOI 10.1016/j.foodchem.2021.129828
WOS© Times Cited 6
Keyword(s) Oxidation, Fatty acids, Lipids, Small pelagic fish, Storage, Cooking method
Abstract

Long-chain omega-3 fatty acids such as eicosapentaenoic (EPA) and docosahexaenoic acids (DHA) are health beneficial lipids found in high concentration in pelagic fishes, including Atlantic mackerel. While EPA and DHA are sensitive to oxidation during fish storage and processing, post-mortem degradation in the first hours following fish death is poorly documented. Here, we stored fish at two temperatures (2-4°C and 18-20°C) and monitored EPA+DHA content in dorsal fillet 6, 12 and 24 hours after fish death and after cooking (grill or steam). Storage duration was the only influencing factor, and EPA+DHA loss was faster at 18-20°C. Six hours after fish death, EPA+DHA content decreased by 1.3±1.3 mg.g-1 (9.6±9.5% of the initial content) but it was highly variable among individuals. Handling between fishing and storage should be as short and as cool as possible to preserve EPA+DHA and food safety. Regarding cooking, EPA+DHA and mono-unsaturated fatty acids increased in grilled fillets.

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How to cite 

Sardenne Fany, Puccinelli Eleonora, Vagner Marie, Pecquerie Laure, Bideau Antoine, Le Grand Fabienne, Soudant Philippe (2021). Post-mortem storage conditions and cooking methods affect long-chain omega-3 fatty acid content in Atlantic mackerel (Scomber scombrus). Food Chemistry, 359, 129828 (6p.). Publisher's official version : https://doi.org/10.1016/j.foodchem.2021.129828 , Open Access version : https://archimer.ifremer.fr/doc/00690/80243/