Characterization of farmed and wild salmon ( Salmo salar) by a combined use of compositional and isotopic analyses

• Published in: Journal of the American Oil Chemists' Society
• Main Authors: Aursand, M., Mabon, F., Martin, G. J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2000
• Subjects: Salmo salar
• Online Access: http://dx.doi.org/10.1007/s11746-000-0106-5; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1007%2Fs11746-000-0106-5; https://onlinelibrary.wiley.com/doi/full/10.1007/s11746-000-0106-5

Abstract Gas chromatography, isotope ratio mass spectrometry, and high‐resolution 2 H site‐specific natural isotope fractionation/nuclear magnetic resonance spectroscopy have been used to study the different kinds of fish oils and lipids extracted from muscle of wild and farmed salmon (Norway, Scotland). A statistical analysis of the fatty acid compositions, overall 2 H and 13 C isotope ratios, and molar fractions of the isotopomeric deuterium clusters was carried out to select the most efficient variables for distinguishing the different groups of salmons and fishes studied. A classification analysis based on four fatty acid compositions, three deuterium molar fractions, and the overall (D/H) tot isotope ratio of fish oils completely assings the oils to the right group.