NMR in Analysis of the Nutritional Value of Lipids from Muscles and Livers of Wild Amazonian Fishes with Different Eating Habits Over Seasonal Variation

Author(s)

Banny S. B. Correia ^[1] ; Gilberto G. D. Ortin ^[2] ; Natalia C. Mor ^[3] ; Maiara S. Santos ^[4] ; Raquel S. Torrinhas ^[5] ; Adalberto L. Val ^[6] ; Ljubica Tasic ^[7]

Affiliation

^[1] Universidade Estadual de Campinas. Instituto de Química - Brasil

^[2] Universidade Estadual de Campinas. Instituto de Química - Brasil

^[3] Universidade Estadual de Campinas. Faculdade de Ciências Farmacêuticas - Brasil

^[4] Instituto Federal de Educação, Ciência e Tecnologia Fluminense - Brasil

^[5] Universidade de São Paulo. Escola de Medicina. Departamento de Gastroenterologia - Brasil

^[6] Instituto Nacional de Pesquisas da Amazônia. Coordenação de Biodiversidade. Laboratório de Ecofisiologia e Evolução Molecular - Brasil

^[7] Universidade Estadual de Campinas. Instituto de Química - Brasil

• Document type: Journal article
• Source: Journal of the Brazilian Chemical Society; v. 31, n. 12, p. 2531-2543, 2020-12-14.

Abstract

Endogenous and environmental factors can influence the lipid contents of fishes among which, in the Amazon River, seasonal dynamics influences stand out. Herein, nine most consumed Amazonian fish species had their lipid composition evaluated in terms of effects of tissue, season and eating habits. Higher amounts of lipids were obtained from fish livers than dorsal muscles. Statistical analysis has shown that Amazonian fishes presented different lipid profiles according to their eating habits, which mainly comprised saturated fatty acids to distinguish detritivorous livers, and linolenic acid, cholesterol, polar lipids for carnivorous and piscivorous fish muscles. Furthermore, in Amazonian fish, some very important lipids for human nutrition were found, such as w-3 and w-6 fatty acids whose availability depended on the tissue metabolism and fishes’ eating habit along with the seasonal periods. For example, our findings indicated that the piscivorous fish C. monoculus presented higher levels of linoleic acid for livers than linolenic acid and the opposite occurred for muscles. The w-6 and w-3 fatty acids ratio was influenced by the season dynamic of the Amazon River and availability of food according to each specific eating habit, pointing mainly to the piscivorous fishes as the healthiest fish for human consumption. (AU)

• FAPESP's process: 13/14707-9 - lipidomic analysis of some Amazonian fish
• Grantee: Banny Silva Barbosa Correia
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 14/11258-1 - Liver lipidomics analysis of two amazon fish species using NMR
• Grantee: Natalia Cristina Mor
• Support Opportunities: Scholarships in Brazil - Scientific Initiation