南海弯斑蛸营养成分的分析与评价

目的:分析和评价弯斑蛸可食部分、生殖腺、肝和胰脏的主要营养特性,并对可食部分的氨基酸、脂肪酸、维生素、矿物元素进行分析和营养评价。方法:用常规方法分析其主要营养素;用氨基酸分析仪分析氨基酸组成,并采用FAO/WHO推荐的蛋白质模式对蛋白质进行营养评价;脂肪酸用气相色谱-质谱联用仪进行检测,并通过分析其组成的主要指标来评价其营养价值;维生素和矿物元素含量直接说明其营养功能。结果:可食部分粗蛋白质含量最高,为78.9%,蛋白质营养价为97,总糖含量肝胰脏>生殖腺>可食部分;脂肪酸中的PUFA和HUFA含量分别为52.6%和51.1%;维生素A和维生素E含量较高;钾、磷、钙、镁、铁等元素的含量丰富。结论:弯斑蛸是高蛋白、低脂肪,蛋白质营养价值高,脂肪酸和矿物元素含量较高的海洋食品。

THE NUTRIENT ANALYSIS AND EVALUATION OF OCTOPUS DOLLFUSI IN SOUTH CHINA SEA

Objective: To analyze and evaluate the main nutrients of edible part, germen, liver and pancreas of Octopus dollfusi. Method: The main nutrients were determined with routine methods. Amino acid compositions were determined with amino acid analyzer. Fatty acid compositions were inspected with GC-MS. Results: Crude protein content of the edible part was highest (78.9%), with chemical score 97. The order of total sugar content was liver and pancreas>germen>edible part. The content of polyunsaturated fatty acid (PUFA) and long- chain PUFA (LCPUFA) in total fatty acid was 52.6% and 51.1% respectively. The content of vitamin A and vitamin E was higher, and the contents of potassium, phosphorus, calcium, magnesium, iron, etc. were rich. Conclusion: Octopus dollfusi is a seafood with higher protein and lower fat, very high protein nutritive value, more fatty acid and mineral elements, and is good for health.