Effects of filleting method, stress, storage and season on the quality of farmed Atlantic cod (Gadus morhuaL.)

Aquaculture ResearchVolume 46, Issue 7 p. 1597-1607 Original Article Effects of filleting method, stress, storage and season on the quality of farmed Atlantic cod (Gadus morhua L.) Gaute Jørpeland, Gaute Jørpeland Department of Biology, University of Bergen, High Technology Centre, Bergen, NorwaySearch for more papers by this authorAlbert Imsland, Albert Imsland Department of Biology, University of Bergen, High Technology Centre, Bergen, Norway Akvaplan-niva Iceland Office, Kopavogur, IcelandSearch for more papers by this authorLars Helge Stien, Lars Helge Stien Institute of Marine Research, Storebø, NorwaySearch for more papers by this authorHogne Bleie, Hogne Bleie Atlantic cod farms AS, Ålesund, NorwaySearch for more papers by this authorBjorn Roth, Corresponding Author Bjorn Roth Processing Technology Department, Nofima AS, Stavanger, NorwayCorrespondence: B Roth, Nofima AS, Box 8034, N-4068 Stavanger, Norway. E-mail: [email protected]Search for more papers by this author Gaute Jørpeland, Gaute Jørpeland Department of Biology, University of Bergen, High Technology Centre, Bergen, NorwaySearch for more papers by this authorAlbert Imsland, Albert Imsland Department of Biology, University of Bergen, High Technology Centre, Bergen, Norway Akvaplan-niva Iceland Office, Kopavogur, IcelandSearch for more papers by this authorLars Helge Stien, Lars Helge Stien Institute of Marine Research, Storebø, NorwaySearch for more papers by this authorHogne Bleie, Hogne Bleie Atlantic cod farms AS, Ålesund, NorwaySearch for more papers by this authorBjorn Roth, Corresponding Author Bjorn Roth Processing Technology Department, Nofima AS, Stavanger, NorwayCorrespondence: B Roth, Nofima AS, Box 8034, N-4068 Stavanger, Norway. E-mail: [email protected]Search for more papers by this author First published: 14 November 2013 https://doi.org/10.1111/are.12312Citations: 11Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The effects of filleting method, pre-slaughter stress, storage and season on drip loss, water content, water-holding capacity, rigour contraction and colour in Atlantic cod, Gadus morhua L., were examined. A total of 182 fish were sampled under commercial conditions. To test the effects of filleting method and stress, stressed (S) and unstressed (C) fish were filleted either pre (Pr) or post rigour (Po) at 1 and 48 h post mortem, receptively. The muscle pH significantly decreased from 0 to 144 h of storage in all groups. The onset of the rigour contraction was more pronounced in the Pr-S group as compared with the Pr-C group, but after 144 h of storage, no difference in degree of contraction was observed. Filleting method, stress and storage time influenced the colour of the fillets. Post-rigour filleting caused a significantly increased in measured Lightness (L*) during storage. Stress caused a significant increase in measured redness (a*). No significant difference was found for water-holding capacity. The water content was influenced by filleting method, where the Pr-S group had a significantly lower water content compared with the Pr-C groups; water content changed also according to season. 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