Exsanguination of Turbot and the Effect on Fillet Quality Measured Mechanically, by Sensory Evaluation, and with Computer Vision

Authors

  • B. Roth,

    1. Authors Roth, Nortvedt, and Imsland are with Applied & Industrial Biology, Dept. of Biology, Univ. of Bergen, N-5020 Bergen, Norway. Author Roth is with Norconserv A/S, Seafood Processing Research, N-4002 Stavanger, Norway. Author Schelvis-Smit is with Wageningen IMARES, Inst. for Marine Resources & Ecosystem Studies, 1970 AB Ijmuiden, The Netherlands. Author Stien is with Inst. of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen, Norway. Author Foss is with Akvaplan-niva Bergen, Pb. 2026 Nordnes, 5817 Bergen, Norway. Author Imsland is also with Akvaplan niva, Iceland Office, Akralind 4, 201 Kopavogur, Iceland. Direct inquiries to author Roth (E-mail:br@norconserv.no).
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  • R. Schelvis-Smit,

    1. Authors Roth, Nortvedt, and Imsland are with Applied & Industrial Biology, Dept. of Biology, Univ. of Bergen, N-5020 Bergen, Norway. Author Roth is with Norconserv A/S, Seafood Processing Research, N-4002 Stavanger, Norway. Author Schelvis-Smit is with Wageningen IMARES, Inst. for Marine Resources & Ecosystem Studies, 1970 AB Ijmuiden, The Netherlands. Author Stien is with Inst. of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen, Norway. Author Foss is with Akvaplan-niva Bergen, Pb. 2026 Nordnes, 5817 Bergen, Norway. Author Imsland is also with Akvaplan niva, Iceland Office, Akralind 4, 201 Kopavogur, Iceland. Direct inquiries to author Roth (E-mail:br@norconserv.no).
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  • L.H. Stien,

    1. Authors Roth, Nortvedt, and Imsland are with Applied & Industrial Biology, Dept. of Biology, Univ. of Bergen, N-5020 Bergen, Norway. Author Roth is with Norconserv A/S, Seafood Processing Research, N-4002 Stavanger, Norway. Author Schelvis-Smit is with Wageningen IMARES, Inst. for Marine Resources & Ecosystem Studies, 1970 AB Ijmuiden, The Netherlands. Author Stien is with Inst. of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen, Norway. Author Foss is with Akvaplan-niva Bergen, Pb. 2026 Nordnes, 5817 Bergen, Norway. Author Imsland is also with Akvaplan niva, Iceland Office, Akralind 4, 201 Kopavogur, Iceland. Direct inquiries to author Roth (E-mail:br@norconserv.no).
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  • A. Foss,

    1. Authors Roth, Nortvedt, and Imsland are with Applied & Industrial Biology, Dept. of Biology, Univ. of Bergen, N-5020 Bergen, Norway. Author Roth is with Norconserv A/S, Seafood Processing Research, N-4002 Stavanger, Norway. Author Schelvis-Smit is with Wageningen IMARES, Inst. for Marine Resources & Ecosystem Studies, 1970 AB Ijmuiden, The Netherlands. Author Stien is with Inst. of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen, Norway. Author Foss is with Akvaplan-niva Bergen, Pb. 2026 Nordnes, 5817 Bergen, Norway. Author Imsland is also with Akvaplan niva, Iceland Office, Akralind 4, 201 Kopavogur, Iceland. Direct inquiries to author Roth (E-mail:br@norconserv.no).
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  • R. Nortvedt,

    1. Authors Roth, Nortvedt, and Imsland are with Applied & Industrial Biology, Dept. of Biology, Univ. of Bergen, N-5020 Bergen, Norway. Author Roth is with Norconserv A/S, Seafood Processing Research, N-4002 Stavanger, Norway. Author Schelvis-Smit is with Wageningen IMARES, Inst. for Marine Resources & Ecosystem Studies, 1970 AB Ijmuiden, The Netherlands. Author Stien is with Inst. of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen, Norway. Author Foss is with Akvaplan-niva Bergen, Pb. 2026 Nordnes, 5817 Bergen, Norway. Author Imsland is also with Akvaplan niva, Iceland Office, Akralind 4, 201 Kopavogur, Iceland. Direct inquiries to author Roth (E-mail:br@norconserv.no).
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  • A. Imsland

    1. Authors Roth, Nortvedt, and Imsland are with Applied & Industrial Biology, Dept. of Biology, Univ. of Bergen, N-5020 Bergen, Norway. Author Roth is with Norconserv A/S, Seafood Processing Research, N-4002 Stavanger, Norway. Author Schelvis-Smit is with Wageningen IMARES, Inst. for Marine Resources & Ecosystem Studies, 1970 AB Ijmuiden, The Netherlands. Author Stien is with Inst. of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen, Norway. Author Foss is with Akvaplan-niva Bergen, Pb. 2026 Nordnes, 5817 Bergen, Norway. Author Imsland is also with Akvaplan niva, Iceland Office, Akralind 4, 201 Kopavogur, Iceland. Direct inquiries to author Roth (E-mail:br@norconserv.no).
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Abstract

ABSTRACT:  In order to investigate the impact of blood residues on the end quality of exsanguinated and unbled farmed turbot (Scophthalmus maximus), meat quality was evaluated using mechanical, sensory, and computer imaging techniques. The results show that exsanguination is important for improving the visual appearance, and the blood residue could be quantified using a computer imaging system. After 6 d of storage, mechanical analysis using puncture test or shear force showed no difference between exsanguinated and unbled fish. The trained taste panel was unable to detect any differences between exsanguinated and unbled fish after 6 and 14 d of storage. We conclude that over a 2-wk period the blood residue in turbot meat does not affect texture or sensory quality, but does affect the visual appearance.

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