| 摘要: |
| 对野生长肋日月贝(Amusium pleuronectes)的闭壳肌和贝肉其他部分的基本营养成分进行分析。结果表明: 闭壳肌的平均质量分数为18.13%±2.15%, 超过优良养殖海湾扇贝“中科红”。闭壳肌的蛋白质质量比(干质量)为847.62 g/kg, 贝肉其他部分蛋白质质量比为662.50 g/kg。必需氨基酸与非必需氨基酸含量的比值在闭壳肌中为44.57％, 在其他贝肉部分中的比值为44.12％。5 种呈味氨基酸(谷氨酸、天冬氨酸、丙氨酸、脯氨酸、丝氨酸)在闭壳肌和其他贝肉部分中的含量分别占氨基酸总量的36.23％和38.21％。闭壳肌中还富含Mg、P、Zn 和Se 等矿物质和微量元素。 |
| 关键词: 长肋日月贝(Amusium pleuronectes) 营养成分分析 营养评价 氨基酸 闭壳肌 贝肉 |
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| 基金项目:中央级公益性科研院所基本科研业务费专项资金项目(2007TS06); 国家科技基础平台建设项目(2005DKA30470-007) |
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| Analysis and evaluation of nutritional components of Amusium pleuronectes |
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| Abstract: |
| Nutritional components of Amusium pleuronectes were analyzed and evaluated. The proportion of adductor muscle (AM) in body weight was 18.13%±2.15%. Crude protein in AM and the other part of shellfish meat (OPSM, in dry weight) were 847.62 g/kg and 662.50 g/kg, respectively. There were high level of Lys in shellfish meat, and the first restricted amino acid (AA) was Val. The ratios between essential AA and non-essential AA were 44.57% and 44.12% in AM and OPSM, respectively; and the proportions of 5 AAs (GLU, ASP, ALA, PRO, and SER) in gross AA were 36.23% and 38.21% in AM and OPSM, respectively. The nutritional value of AM was high because it contained high level of mineral contents and trace elements, such as Mg, P, Zn and Se. |
| Key words: Amusium pleuronectes, analysis of nutrition components, nutritional evaluation, amino acids, adductor muscle, shellfish meat |
