Laboratory of Diversity, Management and Conservation of Biological Systems, LR18ES06, University of Tunis El Manar, 2092, Tunis, Tunisia.
Laboratory of Blue Biotechnology and Aquatic Bioproducts (B3Aqua), National Institute of Sea Science and Technology, la Goulette, Tunisia.
Parasitol Res. 2023 Dec;122(12):3053-3062. doi: 10.1007/s00436-023-07996-z. Epub 2023 Oct 9.
Fish play an important role in human nutrition. They are not only a great source of protein and healthy fats, but also a unique source of essential nutrients such as omega-3 fatty acids. Moreover, most fish are parasitized, and some of these parasites are able to influence the reallocation of resources in their favor and thus reduce the nutritional quality of the fish. The present study was conducted to investigate the impact of the third stage larvae (L3) of Anisakis spp. on the proximate composition, macro-minerals (potassium, calcium, and sodium), and fatty acids of European hake (Merluccius merluccius Linnaeus, 1758). In parasitized female group, our results revealed a decrease (p< 0.005) in the amount of carbohydrate by 6.5%, of calcium by 17%, and of 2 polyunsaturated fatty acids (arachidonic acid (C20: 4w-6), and eicosapentaenoic acid (C20: 5w-3) with 33% and 15% respectively. Simultaneously, an increase by 25% in the level of a single saturated fatty acid C10:0 was noticed. According to the principal component analysis, the parasitized female was wealthy of saturated fatty acids and monounsaturated fatty acids and contains less of polyunsaturated fatty acids, omega-3 fatty acids, and omega-6 fatty acids than the unparasitized female and male. No significant changes were observed in the biochemical composition of male hake, probably due to the low mean intensity of L3 larvae of Anisakis spp. in this group.
鱼类在人类营养中起着重要作用。它们不仅是蛋白质和健康脂肪的重要来源，还是欧米伽-3 脂肪酸等必需营养素的独特来源。此外，大多数鱼类都被寄生虫寄生，其中一些寄生虫能够影响资源的重新分配，从而降低鱼类的营养价值。本研究旨在调查 Anisakis 属的第三期幼虫（L3）对欧鳎（Merluccius merluccius Linnaeus，1758）的近似成分、宏量矿物质（钾、钙和钠）和脂肪酸的影响。在寄生的雌性群体中，我们的研究结果表明碳水化合物含量减少了 6.5%（p<0.005），钙减少了 17%，两种多不饱和脂肪酸（花生四烯酸（C20:4w-6）和二十碳五烯酸（C20:5w-3））分别减少了 33%和 15%。同时，单一饱和脂肪酸 C10:0 的水平增加了 25%。根据主成分分析，寄生的雌性富含饱和脂肪酸和单不饱和脂肪酸，并且与未寄生的雌性和雄性相比，含有较少的多不饱和脂肪酸、欧米伽-3 脂肪酸和欧米伽-6 脂肪酸。雄性鳎鱼的生化成分没有明显变化，这可能是由于该组中 Anisakis 属的 L3 幼虫的平均强度较低。
