Fatty acids profile and cholesterol contents of three Brazilian Brycon freshwater fishes

摘要

This study was carried out to determine the cholesterol and fatty acids in muscle tissue (filet) of three in natura species of Brazilian fishes Brycon cephalus (matrinxa), B. microlepis (piraputanga) and B. orbignyanus (piracanjuba). The non-nativefishes were collected in farms (cultured in pond and cages) near Maringa. The native species were collected in Cuiaba-Manso rivers (B. microlepis), and Parana river (B. orbignyanus) that belong to the Platina hydrographic basin. Differences were observed(P < 0.05) for moisture (70.48-74.06 percent), ashes (1.05-1.32) and crude protein(18.84-20.03 percent). The total lipids and cholesterol contents were found in the range of 2.49-7.94 percent and 40.99-52.79 mg/100 g, respectively. The native species presented the smallest values when compared to the non-native. All species presentedoleic acid, C18:ln-9, as predominant, (38.34-48.77 percent), followed by palmitic acid, 16:0, (21.90-26.57 percent) and stearic acid, C18:0, (8.32-15.66 percent). The largest amount of total n-3 polyunsaturated fatty acids was observed in the wild B. microlepis (3.61 percent) and B. orbiynyanus (3.06 percent).