The Effect of the Species and Harvesting Location on Dried Salted Cod Fatty Acid Signatures and Nutritional Quality
Mário Quaresma,
Gonçalo Pereira,
Maria Leonor Nunes,
Angela Jardim,
Carlos Santos,
Narcisa Bandarra,
Cristina Roseiro
Affiliations
Mário Quaresma
CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
Gonçalo Pereira
CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
Maria Leonor Nunes
CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
Angela Jardim
DGAV—General Directorate of Food and Veterinary, Food and Veterinary Division of Setúbal, 2900-315 Setúbal, Portugal
Carlos Santos
INIAV, IP—Food Technology and Safety Division, National Institute for Agricultural and Veterinary Research, Quinta do Marquês, Av. da República, 2780-159 Oeiras, Portugal
Narcisa Bandarra
IPMA, IP—Division of Aquaculture and Upgrading, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal
Cristina Roseiro
INIAV, IP—Food Technology and Safety Division, National Institute for Agricultural and Veterinary Research, Quinta do Marquês, Av. da República, 2780-159 Oeiras, Portugal
The Atlantic cod was listed as ‘vulnerable’ by the International Union for Conservation of Nature, a condition that persists today. Fishing pressure on the Atlantic cod could be partially transferred to the Pacific cod, since the two cod species share genetic and phenotypic similarities. The aim of this study is to expand knowledge of the composition of dried salted cod obtained from Atlantic and Pacific cod species, with the Atlantic cod being from two different harvesting locations. The comparison of these cod species revealed the existence of nine significant differences among individual FAs (accountable for 63.2% of total FAs), which was at a similar level to that observed between different harvesting locations for the Atlantic cod (ten significant differences among individual FAs, accountable for 61.6% of total FAs). Canonical discriminant analysis and cross-validation achieved full discrimination of the cod’s origin and 100% accuracy in the cod’s origin classification. The amount of EPA plus DHA in dried salted cod reached its higher value among the Pacific cod (302.3 mg/100 g), while the Atlantic cod averaged 284.1 g/100 g of edible portion. The Pacific cod presented a higher α-tocopherol content than its Atlantic counterpart (8.04 vs. 4.94 µg/g).
