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IJFS 2012, 11 Back to browse issues page
Changes of fatty acid profiles in fillets of Cobia (Rachycentron canadum) during frozen storage
S. Taheri * , A. A. Motallebi , A. Fazlara , A. Aghababyan , Y. Aftabsavar
, shahrooztaheri@yahoo.com
Abstract:   (7936 Views)

  In this study changes in fatty acids profile during frozen storage at -18°C of Cobia (Rachycentron canadum), caught from the Persian Gulf (Bandar Abbas) were studied. Changes in saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs), EPA+DHA/C16, n-3 PUFA/n-6 PUFA (n-3/n-6) and polyunsaturated fatty acids /saturated fatty acids (PUFA/SFA) were investigated during a six- month storage at -18°C. Eighteen fatty acids were found in Cobia, with higher percentage of saturated fatty acids (46.07%), monounsaturated fatty acids (33.72%) and polyunsaturated fatty acids (15.44%). The MUFAs and PUFAs reduced from 33.72 to 26.26% and 15.44 to 10.78%, respectively. Palmitic acid (C16:0, 27.42% of total fatty acids) and stearic acid (C18:0, 12.62%) were the dominant saturated fatty acids. The major unsaturated fatty acids were determined as docosahexaenoic acid (C22:6n3, 5.76%), oleic acid (C18:1n9, 25.76%) and linoleic acid (C18:2n6, 4.38%). As a result of the frozen storage (up to 6 months), marked content decreases were found in fatty acid groups such as monounsaturated, polyunsaturated and n-3 polyunsaturated, as well as in the n-3/n-6 ratio and it means that the nutritional value of Cobia has decreased.

Keywords: Cobia, Fish, Fatty acids, Frozen storage
Full-Text [PDF 497 kb]   (3176 Downloads)    
Type of Study: Orginal research papers | Subject: Fish processing
Received: 2012/03/17 | Accepted: 2015/09/13 | Published: 2015/09/13
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Taheri S, Motallebi A A, Fazlara A, Aghababyan A, Aftabsavar Y. Changes of fatty acid profiles in fillets of Cobia (Rachycentron canadum) during frozen storage. IJFS. 2012; 11 (1) :204-213
URL: http://jifro.ir/article-1-453-en.html


Volume 11, Issue 1 (1-2012) Back to browse issues page
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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