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Monthly variation of total lipid and fatty acid contents of Atlantic bonito, Sarda sarda (Bloch, 1793) of Black Sea



This study represents significant monthly variations of total lipid and fatty acid composition of muscle and liver tissue of Black Sea bonito (P < 0.05). Average total lipids of bonito muscle and liver were 8.4% and 25.1%, respectively, and the highest polyunsaturated fatty acid (PUFA) was observed in September and March as 52.9% and 46.6%, respectively. Bonito muscle was found to contain good amounts of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in a range of 252.0–1169.1 mg/100 g and 712.1–3324.1 g/100 g, respectively. Higher levels were found in liver at 3323.3 mg/100 g for EPA and 6996.5 mg/100 g for DHA. Although 25–100 g edible muscle is necessary to reach 1 g per day of EPA+DHA requirement for a healthy diet, only 9.8–87.9 g of bonito liver is enough to cover the recommended daily amount for these fatty acids. The results indicate that bonito livers constitute a rich and underexploited source of PUFAs.

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