Decapods as functional food from a view of ecosystem service at Paraná River Basin, South America

COLLINS P.; D'ALESSANDRO M.E.

Olomouc

Simposio; X Symposium for European Freshwater Science; 2017

European Freshwater Science Society - Universidad de Olomouc

Freshwater environments give services to society. Those related to health and human nutrition must be considered. Decapods are abundant in tropical and subtropical rivers. The work aim is to evaluate the nutritional quality of the decapods from the amino acids composition in muscle, considering as a functional food to improving man health. The decapods Macrobrachium borellii and Aegla uruguayana from Parana River Basin were sampled, and amino acids in muscle were determined after derivatization by HPLC, using D,L-α-aminobutyric acid as internal standard. Sixteen amino acids were determined, eight essential amino acids (EAA) for human, and the rest non-essential amino acids (NEAA). From the total AA, 38 and 40 % were EAA in M. borellii and A. uruguayana, respectively. The EAA have the following order; M. borellii: lysine > leucine > phenylalanine > valine > isoleucine > threonine > histidine > methionine; A. uruguayana: lysine > leucine > phenylalanine > threonine > isoleucine > histidine > valine > methionine. Both species provide the indispensable amino acid requirement for adults (FAO 2007). Regarding schoolchild/adolescent pattern, A. uruguayana has valine, and M. borellii has sulfur amino acids as limiting, 95 and 96 % of basic requirement for the group. Histidine and methionine in decapods were higher than sea and freshwater fishes (tuna, sardine, hake, carp, salmon, trout). Valine and isoleucine were lower than sea fishes, and only valine to freshwater fishes. Both species could be a functional resource to the feeding, improving health as a service of Paraná River Basin to society.