High-resolution 1H magnetic resonance spectroscopy of whole fish, fillets and extracts of farmed Atlantic salmon (Salmo salar) for quality assessment and compositional analyses

• Published in: Aquaculture Vol. 250; no. 1; pp. 445 - 457
• Main Authors: Gribbestad, Ingrid S., Aursand, Marit, Martinez, Iciar
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 14.11.2005; Elsevier Science; Elsevier Sequoia S.A
• Subjects: 1H spectroscopy; Agnatha. Pisces; anadromous fish; Animal aquaculture; Animal productions; Atlantic salmon; Biological and medical sciences; body composition; body fat; chemical composition; fillets; fish culture; fish farms; Fundamental and applied biological sciences. Psychology; General aspects; In vivo MRS; Intact fish muscle; Lipids; Magnetic resonance; magnetic resonance imaging; muscle tissues; nuclear magnetic resonance spectroscopy; perchlorates; Perchloric acid extracts; qualitative analysis; Quality; quantitative analysis; Salmo salar; Salmon; Spectrum analysis; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution; Perchloric acid extracts; In vivo MRS; 1H spectroscopy; Magnetic resonance; Lipids; Atlantic salmon; Intact fish muscle; Salmonidae; High resolution; Farming animal; Salmo salar; Fish fillet; Vertebrata; Pisces; Aquaculture
• ISSN: 0044-8486; 1873-5622
• DOI: 10.1016/j.aquaculture.2005.02.031

This work reports the interpretation of the spectra from high-resolution 1H MR spectroscopy of extracts, muscle, and whole Atlantic salmon, the latter using a MR image localization technique. It was possible to identify single chemical components, such as hypoxanthine, amino acids, anserine, lactate and some fatty acids, in extracts, whole muscle and whole fish. These techniques may have practical applications for i) the selection of live specimens for breeding, ii) the classification of both live specimens and fillets according to their qualitative and quantitative content of lipids and small molecules, which is of relevance for the nutritional value of fish, and iii) authentication analyses of Atlantic salmon.