By using routine methods, we evaluated the nutritional components in soft part of Mytilus coruscus to evaluate the nutritional and dietary value as well as developmental prospects in its breeding. Results show that the content of water, crude protein, crude fat and ash in soft part of M. coruscus is 74. 20%, 11. 12%, 3. 10% and 1. 70%, respectively; seventeen common amino acids are detected in its muscle, including 7 essential amino acids required for human body (37. 2% ) and 4 delicious amino acids (37. 9% ). The first limiting amino acids are He and Thr; the essential amino acid index ( EAAI) is 45. 27; the constituent ratio of essential amino acids meets the FAO/WHO pattern. For mineral elements, the content of Na is the highest, followed by K and Ca For trace elements, the content of Zn is the highest, followed by Fe. The ratio among Cu, Fe and Zn is reasonable. The results indicate that M. coruscus is a kind of marine mollusca with relatively high nutritional and dietary value, broad breeding prospects and market developmental potential.%为评估舟山海域厚壳贻贝(Mytilus coruscus)的营养水平、确定其食用价值和养殖开发前景,采用常规营养指标测定方法对厚壳贻贝软体部分营养成分进行了评价.结果显示,厚壳贻贝软体部分(鲜样)中的水分、粗蛋白、粗脂肪和灰分的质量分数分别为74.20％、11.12％、3.10％和1.70％.共检出17种常见的氨基酸,包括7种人体必需氨基酸和4种鲜味氨基酸,分别占氨基酸总量的37.2％和37.9％;第一限制性氨基酸为异亮氨酸(Ile)和苏氨酸(Thr),氨基酸指数(EAAI)为45.27,必需氨基酸的构成比例基本符合FAO/WHO模式.矿质元素中钠(Na)质量分数最高,其次为钾(K)和钙(Ca);微量元素中锌(Zn)质量分数最高,其次为铁(Fe),铜(Cu)、Fe、Zn之间的比值合理.结果表明厚壳贻贝是营养价值较高的海水经济贝类,具有较高的食用价值、广阔的养殖前景和市场开发潜力.
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