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

• Autor(a) principal: Souza, Nilson Evelázio de
• Data de Publicação: 2008
• Outros Autores: Matsushita, Makoto, Franco, Maria Regina Bueno, Prado, Ivanor Nunes do, Visentainer, Jesuí Vergílio
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta scientiarum. Technology (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1501
• topic: ácidos graxos; DHA; EPA; LNA; tilápias; vísceras; 1.06.00.00-0 Química

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.