Ben-Youssef Saoussen, Selmi Salah, Ezzeddine-Najai Sofia, Sadok Saloua
Marine Biodiversity and Biotechnology Laboratory, Institut National des Sciences et Technologies de la Mer, 28 Rue 2 Mars 1934, Carthage Salammbô, 2025, Tunis, Tunisia.
Nutr Health. 2008;19(3):195-201. doi: 10.1177/026010600801900306.
The aim of this work was to investigate biochemical differences between Octopus vulgaris caught off costal zone and from the deep-sea of the Golf of Gabès (South coast of Tunisia). In both fishing grounds, octopus total lipids constituted almost 1.5% of wet tissue showing no significant difference (p < 0.05). The percentage distribution of fatty acids was not significantly different, neither between males and females, nor between both areas. Polyunsaturated fatty acids constituted about 50 % of the total fatty acids. Docosahexaenoic (DHA; C22:6 omega 3), eicosapentaenoic (EPA; C20:5 omega 3) and the arachidonic acids (C20:4) were the most important of this group with percentages of 25, 14 and 10% respectively. The saturated fraction constituted almost 30% of the total fatty acids. The most dominant saturated fatty acids were palmitic acid (C16:0) and stearic acid (C18:0), with 18% and 7% respectively. The monounsaturated content was found to contribute only 10% of the total fatty acids. Most of the monounsaturated fat was present as oleic acid (C18:1) and palmitoleic acid (C16:1) with 2.5% and 1.5% respectively. The presence of arachidonic acid in substantial proportions with an omega 3 to omega 6 ratios of 3.9 to 1 is of special interest because of the role of cephalopods in the traditional Mediterranean diet.
这项工作的目的是研究在突尼斯南海岸加贝斯湾沿海区域捕获的普通章鱼与深海捕获的普通章鱼之间的生化差异。在这两个渔场，章鱼的总脂质占湿组织的近1.5%，无显著差异（p < 0.05）。脂肪酸的百分比分布在雄性和雌性之间以及两个区域之间均无显著差异。多不饱和脂肪酸约占总脂肪酸的50%。二十二碳六烯酸（DHA；C22:6 ω-3）、二十碳五烯酸（EPA；C20:5 ω-3）和花生四烯酸（C20:4）是该组中最重要的脂肪酸，分别占25%、14%和10%。饱和脂肪酸部分约占总脂肪酸的30%。最主要的饱和脂肪酸是棕榈酸（C16:0）和硬脂酸（C18:0），分别占18%和7%。单不饱和脂肪酸含量仅占总脂肪酸的10%。大部分单不饱和脂肪以油酸（C18:1）和棕榈油酸（C16:1）的形式存在，分别占2.5%和1.5%。由于头足类动物在地中海传统饮食中的作用，大量比例的花生四烯酸（ω-3与ω-6比例为3.9比1）的存在特别引人关注。
