Visible/Near‐Infrared Spectroscopy: A New Tool for the Evaluation of Fish Freshness? |
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| Authors: | H. Nilsen M. Esaiassen K. Heia F. Sigernes |
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| Affiliation: | Authors Nilsen, Esaiassen, and Heia are with the Norwegian Institute of Fisheries and Aquaculture AS, N-9291 Tromsø, Norway;Author Sigernes is affiliated with UNIS - The University Courses on Svalbard, PB 156, N-9170 Longyearbyen, Norway. Direct inquiries to author Nilsen (). |
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| Abstract: | ABSTRACT: The freshness as storage time in ice of cod ( Gadus morhua ) and salmon ( Salmo salar ) was estimated by visible/near infrared (VIS/NIR) spectroscopy. The correlation between spectral data and storage time was modeled by multivariate statistics. For cod, the best-fit model was found by using the visible wavelength range, giving correlation of prediction of 0.97 with an error value of 1.04 d. For salmon, the best-fit model was made with data from the NIR range giving correlation of prediction of 0.98 and an error value of 1.20 d. Hence, VIS/NIR spectroscopy proved useful for the evaluation of fish freshness. |
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| Keywords: | Keywords: VIS/NIR spectroscopy cod salmon storage time |
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