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Ciência e Agrotecnologia

versão impressa ISSN 1413-7054

Resumo

PETENUCI, Maria Eugênia et al. Composition and lipid stability of tilapia fishbone flour. Ciênc. agrotec. [online]. 2010, vol.34, n.5, pp.1279-1284. ISSN 1413-7054.  https://doi.org/10.1590/S1413-70542010000500028.

The composition of the tilapia (Oreochromis niloticus) fishbone is unknown. Lipid composition fishbone is not cited in the literature, and neither is the stability of the flour of the fishbone during storage. We studied the processing of fishbone cooking, grinding, drying, sieving and the storage of the flour. The flour was stored in a refrigerator for a period of 90 days, and its quality was monitored through fatty acid composition, acid index and microbiology control. The results of the proximate composition were of 14.2% (moisture), 40.8% (protein), 18.3% (ash), and 25.3% total lipids. In the total lipids identified 24 fatty acids were identified, with predominance of the fatty acids (medium percentage) of 27.4% (palmitic acid, 16:0), 35.15% (oleic acmid, 18:1n-9) and 11.82% (linoleic acid , 18:2n-6) and, in smaller proportion: 0.88% (alpha-linolenic acid, 18:3n-3), 0.08% (eicosapentaenoic acid, 20:5n-3) and 0.59 (docosahexaenoic acid, 22:6n-3). During the 90 days of storage some alterations were observed in the acid index and composition of some fatty acids, however, for 60 days of storage no alterations were observed in the fatty acids composition, acid index, and microbiology control.

Palavras-chave : Tilapia; flour; backbone; fatty acids; storage.

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