条石鲷肌肉营养成分分析及评价  

Analysis of Nutrient Components and Evaluation of Nutritive Quality in the Muscle of Oplegnathus fasciatus

作　　者：胡玲玲[1,2] 李加儿[1] 区又君[1] 蔡文超[1] 

机构地区：[1]中国水产科学研究院南海水产研究所,水产种质资源与养殖技术重点开放实验室,广东广州510300 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《华南农业大学学报》2010年第3期71-75,共5页Journal of South China Agricultural University

基　　金：中国水产科学研究院水产种质资源与养殖技术重点开放实验室开放基金(2007A014)

摘　　要：条石鲷肌肉营养成分分析的结果表明:水分、粗灰分、粗蛋白、粗脂肪和无氮浸出物的质量分数分别为78.08%、16.86%、3.02%、0.55%和1.49%.能值和比能值分别为5.43和32.24kJ/g.肌肉中含有19种氨基酸,即常规氨基酸18种(占干样77.26%),牛磺酸(Tau)1种,总量占干样77.88%,其中8种人体必需氨基酸(EAA),总量占干样32.11%,占氨基酸总量的41.56%;4种鲜味氨基酸(DAA),总量占干样30.19%,占18种氨基酸总量的39.08%.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.条石鲷的限制性氨基酸主要为色氨酸(Trp),其次是蛋氨酸和胱氨酸(Met和Cys)、苏氨酸(Thr),必需氨基酸指数(EAAI)为64.43,支/芳值达2.57,接近人体正常需要值.脂肪酸中EPA和DHA质量分数分别为1.76%和15.1%,含量较高.矿物质含量丰富,尤其锌(Zn)和硒(Se)的含量较高.Nutrient components in the muscle of Oplegnathus fasciatus were investigated in this study. The results showed that the content of moisture, crude ash, crude protein and crude fat in fresh muscle of O. fasciatus were 78.08% , 16.86% ,3.02% ,0. 55% and 1.49% ,respectively. The content of energy was 5.43 kJ/g, and E/P was 32.24 kJ/g. Nineteen amino acids were found in the muscle of O. fasciatus, including eighteen common amino acids （eight essential amino acids, two half-essential amino acids and eight nonessential amino acids ） and Taurine. In dry sample, the total content of amino acids was 77.88% ; The total content of eighteen common amino acids （TAA） was 77.26% ,the content of essential amino acids （EAA）, half-essential amino acids （HEAA） and nonessential amino acids （NEAA） were 32. 11% ,6. 82% and 38.33% （to total common amino acids）, respectively. Four kinds of delicious amino acids accounted for 30. 19% in dry sample; the ratio of total delicious amino acids to total amino acids [ w（DAA）/w（TAA） ] was 39.08%. The essential amino acids index （EAAI） was 64. 43 ,the content of the different amino acids was stable and the constitutional rate of the essential amino acids met the FAO/WHO Standard. The first limited amino acids was Trp and the second limited amino acids were Met ＋ Cys and Thr. Essential amino acids gram to total nitrogen gram （E/TN） was 2. 57, by nutrition evaluation for the amino acids in muscle to human needs. The contents of EPA and DHA in fatty acids were 1.76% and 15.10% ,respectively. The composition of mineral elements in the muscle of O.fasciatus were rich,in terms of Zn （58. 9 μg · g^-1 ） and Se （3. 96 μg · g^-1） especially.

关 键 词：条石鲷 肌肉 营养成分 分析评价 

分 类 号：Q501[生物学—生物化学]