Total lipid nutritional quality of the adipose tissue from the orbital cavity in Nile tilapia from continental aquaculture

• Published in: Acta scientiarum. Animal sciences Vol. 39; no. 4; pp. 335 - 341
• Main Authors: Sousa, Alison Bruno Borges de, Santos Júnior, Oscar De Oliveira, Visentainer, Jesuí Vergílio, Almeida, Neiva Maria de
• Format: Journal Article
• Language: English; Portuguese
• Published: Maringa Editora da Universidade Estadual de Maringá - EDUEM 2017; Editora da Universidade Estadual de Maringá (Eduem)
• Subjects: Adipose tissue; Aquaculture; atherogenicity index; Bleeding; Farms; Fatty acid composition; Fatty acids; Fish farms; Food composition; Freshwater; Freshwater fishes; Gas chromatography; Linolenic acid; Lipids; Nutritive value; Oreochromis niloticus; Polyunsaturated fatty acids; thrombogenicity index; Tilapia; VETERINARY SCIENCES; Oreochromis niloticus; fatty acids; índice de aterogenicidade; índice de trombogenicidade; thrombogenicity index; atherogenicity index; ácidos graxos
• ISSN: 1806-2636; 1807-8672; 1807-8672
• DOI: 10.4025/actascianimsci.v39i4.36303

This study aimed to determine the fatty acid composition and nutritional quality indexes of total lipids in adipose tissue from the orbital cavity of Nile tilapia from continental aquaculture in Paraiba State, Brazil. The tilapias were captured in six fish farms, and after slaughtering and bleeding, the adipose tissue from the orbital cavity was reserved, frozen and lyophilized for analysis of fatty acid composition by gas chromatography. By decreasing order, oleic, palmitic, linoleic, stearic, and palmitoleic acids were the most abundant ones. Monounsaturated fatty acids were the most prominent group in orbital cavity adipose tissue, where as polyunsaturated fatty acids were most abundant in the diet, with a percentage of linolenic acid ranging from 32.99 to 37.57%. Nutritional quality indexes of lipids varied from 0.491 to 0.575 for Atherogenicity Index, 0.543 to 0.741 for Thrombogenicity Index, and from 1.918 to 2.176 regarding the ratio of hypocholesterolemic/hypercholesterolemic. According to the composition of fatty acids and the nutritional quality of total lipids, the use of this byproduct can be recommended for human consumption or to elaborate products for animal intake.