<b>Percentual composition, fatty acids and quantification of the LNA (Alfa-Linolenic), EPA (Eicosapentaenoic) and DHA (Docosahexaenoic) acids in visceras of Nile Tilapia (<em>Oreochromis niloticus</em>)</b> - DOI: 10.4025/actascitechnol.v27i1.1501

Abstract

The chemical composition was evaluated in visceras of tilapias raised in captivity. The moisture, ash, crude protein and total lipids contents were 64.4%; 1.3%; 6.3% and 18.0%, respectively, characterizing high total lipids concentration in relation other residues of fish. Forty nine fatty acids were detected, the major fatty acids were oleic (32.8%), palmitic (19.9%) and linoleic-1 (18.2%) and oleic (9.4%). The ratio n-6/n-3 and polyunsaturated/saturated fatty acids, showed the values 5.5 and 0.9, respectively. The quantifications of alfa-linolenic, eicosapentaenoic and docosahexaenoic acids (in mg/g of total lipids), were 10.4, 1.4 and 0.3, respectively. The higher contents of total lipids in visceras contributed significantly for amounts of n-3 fatty acids. All the parameters analyzed were shown nutritional value satisfactory in this sense visceras of tilapias can be used in the feed of fish and other animal.