Identification of the farm origin of salmon by fatty acid and HR 13C NMR profiling

Autor:	Inger B. Standal, Iciar Martinez, Marit Aursand, B. Finstad, David E. Axelson
Rok vydání:	2009
Předmět:	chemistry.chemical_classification Veterinary medicine business.industry Ecology Fish farming Fatty acid High resolution General Medicine Biology Carbon-13 NMR Analytical Chemistry chemistry Aquaculture business Food Science
Zdroj:	Food Chemistry. 116:766-773
ISSN:	0308-8146
Popis:	Lipid analyses by gas chromatography (GC) and by high resolution (HR) 13 C NMR combined with chemometrics were used to identify wild and farmed Atlantic salmon and the farm origin of farmed salmon. Reference samples were 59 specimens from four different farms in the Hardangerfjord (Norway) and the test fish were 17 free-living fish, caught in the same fjord. Four free-living fish were identified as wild by their fatty acids profile, n3/n6 ratio and by principal component analysis. To identify the farm of origin of farmed salmon, Bayesian belief networks (BBN) and support vector machines (SVM) were the best methods classifying correctly 58 (BBN and GC) and 56 (SVM and 13 C NMR) of the 59 reference samples. Of the 12 free-living fish identified as farmed, four seemed to originate from farm 2 and 3 from farm 4. The rest could not be clearly attributed to any of the four farms and may originate from any of the other 26 farms located in the fjord.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::52cc7c2e3b190a0d28bc5c676a8441ac https://doi.org/10.1016/j.foodchem.2009.03.026 Zobrazit plný text záznamu Full Text from ScienceDirect