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In vivo determination of fat content in Atlantic salmon ( Salmo salar ) with a mobile NMR spectrometer
Author(s) -
Veliyulin Emil,
van der Zwaag Claas,
Burk Wolfgang,
Erikson Ulf
Publication year - 2005
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2117
Subject(s) - salmo , chemistry , globules of fat , fish <actinopterygii> , extraction (chemistry) , spectrometer , in vivo , fish oil , food science , chromatography , fishery , biology , microbiology and biotechnology , linseed oil , milk fat , physics , quantum mechanics
A new method for the rapid measurement of the fat content in live (or slaughtered) Atlantic salmon, based on a mobile low‐field NMR analyser, has been developed and tested. The instrument, calibrated against a set of reference samples (fish oil in agarose), was used for non‐destructive fat determination of the Norwegian quality cut (NQC) of anaesthetized fish. The total analysis time per fish was about 20 s. The fat content (range 90–182 g kg −1 ) showed significant correlation ( r = 0.92) with chemical extraction data obtained after slaughtering the same fish. The spatial distribution of fat in the NQC was obtained and visualized as a ‘fat image’ using novel software. It was concluded that the mobile NMR spectrometer has potential for implementation in connection with on‐line quality control. Copyright © 2005 Society of Chemical Industry