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| 七带石斑鱼肌肉营养成分分析与品质评价 |
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程波1, 陈超2, 王印庚3, 李胜忠4, 于宏3, 张家松2, 杨志5, 于文松6, 曲江波5
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1.(1 中国水产科学研究院黄海水产研究所，青岛 266071）
(2 新疆农业大学动物科学学院，乌鲁木齐 830052）;2.1 中国水产科学研究院黄海水产研究所，青岛 266071;3.1 中国水产科学研究院黄海水产研究所，青岛 266071;4.2 新疆农业大学动物科学学院，乌鲁木齐 830052;5.3 烟台开发区天源水产养殖有限公司，264006;6.4 烟台市水产研究所，264000
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| 摘要: |
| 对饲养的七带石斑鱼Epinephelus septemfasciatus Thunberg的含肉率、营养成分及鱼肉品质进行了研究，采用常规肌肉营养测定方法分析了4尾成鱼的肌肉营养成分。结果表明，七带石斑鱼的含肉率为76.73%，肌肉(鲜样)中粗蛋白含量为19.60%，粗脂肪为2.70%，氨基酸总含量为18.33%，其中7种必需氨基酸的总含量为7.59%，占氨基酸总含量的41.4%，其必需氨基酸的构成比例符合联合国粮农组织/世界卫生组织(FAO/WHO)的标准模式。必需氨基酸指数(EAAI)为82.38，5种鲜味氨基酸的总含量为8.22%。多不饱和脂肪酸含量为32.45%，其中EPA与DHA的平均含量分别为6.11%和12.78%。七带石斑鱼肌肉矿物元素种类丰富，矿物质中钾含量（4561.02 mg/kg）最高，在微量元素中锌含量(4.20 mg/kg)最高。 |
| 关键词: 七带石斑鱼 肌肉 营养成分 评价 |
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| Nutritional components analysis and nutritive value evaluation in Epinephelus septemfasciatus muscles |
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| Abstract: |
| Nutritiona1 components in muscle of Epinephelus septemfasciatus were analyzed with routine methods．The results showed that contents of crude protein, crude fat and dressed fish of fresh muscles were 19.60%, 2.70% and 76.73%, respectively．The tota1 content of amino acids was 18.33%；the content of essentia1 amino acids was 7.59%；the percentage of essentia1 amino acids in tota1 amino acids was 41.40%. The five delicious amino acids accounted for 8.22% and the amount of po1yunsa1turated fatty (PUFA ) was 32.45%．The essential amino acids index (EAAI) was 82.38. The content of EPA and DHA was 6.11% and 12.78%, respectively. It was apparent that the content of the different amino acids was stable and the corrtrition rate of the essentia1 amino acids accorded with FAO/WHO standard. The composition of mineral and trace elements of the fish was reasonable. It was indicated that E. septemfasciatus is a fish species with better nutritive value and therefore E. septemfasciatus will be an important cultured species in the future. |
| Key words: Epinephelus septemfasciatus Muscle Nutritional components Nutritional evaluation |