Nieminen Petteri, Westenius Eini, Halonen Toivo, Mustonen Anne-Mari
University of Eastern Finland, Faculty of Health Sciences, School of Medicine, Institute of Biomedicine/Anatomy, P.O. Box 1627, FI-70211 Kuopio, Finland; University of Eastern Finland, Faculty of Science and Forestry, Department of Biology, P.O. Box 111, FI-80101 Joensuu, Finland.
University of Eastern Finland, Faculty of Health Sciences, School of Medicine, Institute of Biomedicine/Anatomy, P.O. Box 1627, FI-70211 Kuopio, Finland.
Food Chem. 2014 Sep 15;159:80-4. doi: 10.1016/j.foodchem.2014.02.148. Epub 2014 Mar 7.
The fatty acid (FA) compositions of the diet and diverse tissues of the farmed Siberian sturgeon (Acipenser baerii) were analyzed in detail to assess their nutritional quality. Twelve male fish were sampled for muscle, fat, liver, brain, gill, kidney and gonad and the tissue FA measured by gas-liquid chromatography. The FA profile of the diet diverged from the FA signatures of the tissues, where the sturgeons accumulated particular highly-unsaturated FA (HUFA). They were probably derived from the diet but, as previous studies have shown that fish can also have desaturase enzymes, endogenous synthesis of these FA cannot be excluded. The sturgeon muscle tissue contained HUFA in proportions comparable to those of other fish species that are considered good sources of n-3 polyunsaturated FA. The indices of atherogenicity and thrombogenicity were also within the values considered to be health-promoting.
详细分析了养殖西伯利亚鲟（Acipenser baerii）的饮食和不同组织中的脂肪酸（FA）组成，以评估其营养质量。采集了12条雄鱼的肌肉、脂肪、肝脏、脑、鳃、肾脏和性腺样本，并通过气液色谱法测量组织中的脂肪酸。饲料的脂肪酸谱与组织的脂肪酸特征不同，鲟鱼在组织中积累了特定的高度不饱和脂肪酸（HUFA）。它们可能来源于饲料，但正如先前研究表明鱼类也具有去饱和酶，因此不能排除这些脂肪酸的内源性合成。鲟鱼肌肉组织中高度不饱和脂肪酸的比例与其他被认为是n-3多不饱和脂肪酸良好来源的鱼类相当。致动脉粥样硬化指数和血栓形成指数也在被认为有利于健康的范围内。
