南湾鳙鱼肌肉氨基酸组成及营养分析

Analysis of the Contents of Amino Acids and Nutrition in Muscle of South Bay Bighead Carp

采用氨基酸自动分析仪测定南湾鳙鱼肌肉中的氨基酸组成,并对其相关营养进行分析。结果显示,南湾鳙鱼肌肉中共检测到17种氨基酸,其中8种人体必需氨基酸含量为7.13%(占鲜样的比例,下同),占氨基酸总量的39.24%;呈味氨基酸含量为8.96%,占氨基酸总量的49.30%;南湾鳙鱼肉必需氨基酸中除了缬氨酸和异亮氨酸外,其他氨基酸的含量均高于FAO/WHO评分模式;赖氨酸含量高于鸡蛋蛋白标准模式;从AAS评分判断,南湾鳙鱼肉中蛋氨酸+胱氨酸为第一限制性氨基酸,缬氨酸为第二限制性氨基酸。

The amino acids of South Bay bighead carp were detected with automatic amino acid analyzer ,and the relevant nutrition were also analyzed. The results showed that 17 kinds of amino acids were detected from the South Bay bighead carp,among them,the essential amino acids content were 7.13g/100g （For fresh sample proportion,the same below）,accounting for 39.24%of the total amino acids;the flavor amino acids content were 8.96%,accounting for 49.30%of the total amino acids;the content of essential amino acids of the South Bay bighead carp were higher than that of FAO/WHO score model except valine and isoleucine;the content of Lysine was higher than the egg protein standard mode;judging from the AAS score,methionine＋cystine was the first limiting amino acid of the South Bay bighead carp, and valine was the second limiting amino acid.