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Fatty acid composition and nutritional profiles of Brycon spp. from central Amazonia by different methods of quantification

Petenuci, Maria Eugênia, dos Santos, Vanessa Jorge, Gualda, Isabella Peres, Lopes, Ana Paula, Schneider, Vanessa Vivian Almeida, dos Santos, Oscar Oliveira, Jr., Visentainer, Jesuí Vergilio
Journal of food science and technology 2019 v.56 no.3 pp. 1551-1558
Brycon cephalus, basins, diet, docosahexaenoic acid, eicosapentaenoic acid, fatty acid composition, fish, food choices, nutrient content, nutritive value, omega-3 fatty acids, Amazonia
This study evaluated the fatty acid composition and the nutritional profile of Brycon cephalus and Brycon microlepis, fish species from the central Amazon basin, by different methods of quantification. The methods applied were: area normalization (MAN), internal standard (MIS), alternative theoretical (MAT) and alternative experimental (MAE). Significant differences were observed between the methods applied and the species studied. MAN supplied poor information about fatty acids composition and diet formulation, presenting only fatty acid profiles. MIS, MAT and MAE supplied fatty acids composition information on a mass basis. MAT and MAE overestimated results, whereas MIS presented the most accurate results. B. cephalus and B. microlepis showed high contents of approximately 65 mg g⁻¹ of n-3 fatty acids. Eicosapentaenoic acid (EPA; 20:5n-3) and docosahexaenoic acid (DHA; 22:6n-3) content totaled, 104.37 mg 100 g⁻¹ and 117.89 mg 100 g⁻¹ for B. cephalus and B. microlepis, respectively. The nutritional profile of both fish species showed favorable indices for nutritional quality of the lipid fraction, indicating that both Brycon species are healthy dietary choices.