摘要:
分析了巨骨舌鱼肌肉的主要营养成分,并综合评定其营养价值。结果表明,巨骨舌鱼肌肉中蛋白质、脂肪含量分别占鲜重的16.5%和6.8%;18种氨基酸总含量约占其干重的54.76%,其中8种必需氨基酸占氨基酸总量的37.60%,必需氨基酸与非必需氨基酸含量的比值为58.91%,鲜味氨基酸含量占干重的22.0%,必需氨基酸指数为65.7,色氨酸和甲硫氨酸分别是第一、二限制氨基酸;不饱和脂肪酸占脂肪酸总量的55.8%,DHA和EPA共占8.6%;矿物质含量丰富,尤其是钙含量最高,达3 367 mgkg-1。
Abstract:
The nutrients and nutritive value of Arapaima gigas fillet were determined.The results showed that the protein and fat in the fresh muscles were 16.5% and 6.8%,respectively.The total content of 18 amino acids was 54.76%(dry weight),while 37.6% of which was the 8 essential amino acids.The ratio of essential amino acids to non-essential amino acids was 58.91%.The essential amino acids index was 65.7,with the first and second limiting amino acid being Met and Trp,respectively.The content of 4 flavoring amino acids was 22%.It contained 8.6% DHA and EPA.The unsaturated fatty acid made up 55.8% of the total fatty acids.The contents of minerals and trace elements were high,particularly,Ca(i.e.,3367 mgkg-1).
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