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Antioxidants 2018, 7(8), 96; https://doi.org/10.3390/antiox7080096

Profiling of Omega-Polyunsaturated Fatty Acids and Their Oxidized Products in Salmon after Different Cooking Methods

1
School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
2
Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS Université de Montpellier, ENSCM, F-34093 Montpellier, France
*
Author to whom correspondence should be addressed.
Received: 5 June 2018 / Revised: 13 July 2018 / Accepted: 14 July 2018 / Published: 24 July 2018
(This article belongs to the Special Issue Lipid Peroxidation: Analysis and Applications in Biological Systems)
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Abstract

Consumption of food containing n-3 PUFAs, namely EPA and DHA, are known to benefit health and protect against chronic diseases. Both are richly found in marine-based food such as fatty fish and seafood that are commonly cooked prior to consumption. However, the elevated temperature during cooking potentially degrades the EPA and DHA through oxidation. To understand the changes during different cooking methods, lipid profiles of raw, boiled, pan-fried and baked salmon were determined by LC-MS/MS. Our results showed that pan-frying and baking elevated the concentration of peroxides in salmon, whereas only pan-frying increased the MDA concentration, indicating it to be the most severe procedure to cause oxidation among the cooking methods. Pan-frying augmented oxidized products of n-3 and n-6 PUFAs, while only those of n-3 PUFA were elevated in baked salmon. Notably, pan-frying and baking increased bioactive oxidized n-3 PUFA products, in particular F-4t-neuroprostanes derived from DHA. The results of this study provided a new insight into the application of heat and its effect on PUFAs and the release of its oxidized products in salmon. View Full-Text
Keywords: salmon; cooking; lipid peroxidation; polyunsaturated fatty acids; neuroprostanes salmon; cooking; lipid peroxidation; polyunsaturated fatty acids; neuroprostanes
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Leung, K.S.; Galano, J.-M.; Durand, T.; Lee, J.C.-Y. Profiling of Omega-Polyunsaturated Fatty Acids and Their Oxidized Products in Salmon after Different Cooking Methods. Antioxidants 2018, 7, 96.

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