摘要
通过对人工养殖大鲵肌肉和鲵皮的一般营养成分、氨基酸组成和矿物质元素含量进行分析及评价,旨在为人工养殖大鲵资源的综合开发利用提供科学的理论指导。结果表明:人工养殖大鲵肌肉和鲵皮中蛋白质含量分别高达92.60%(干重)和96.46%(干重);脂肪含量低,分别为6.24%(干重)和4.02%(干重)。鲵肉蛋白质中氨基酸组成全面:共含18种氨基酸,其中6种呈味氨基酸占氨基酸总量的42.77%,8种人体必需氨基酸占氨基酸总量的40.72%,必需氨基酸与非必需氨基酸比值为68.68%,均符合FAO/WHO理想模式,无限制性氨基酸;鲵皮蛋白质中含硫氨基酸含量丰富,第一限制性氨基酸为色氨酸,第二限制性氨基酸为亮氨酸。此外大鲵肌肉和鲵皮中含有丰富的矿物质元素,其中钾含量最高,分别为(1184.96±73.84)mg/100g(干重)和(391.24±87.69)mg/100g(干重);微量元素中,锌和铁含量较高。
Nutritional components of the meat and skin of farmed Chinese giant salamander（Andrias davidianus） were determined and nutritive quality was evaluated to provide scientific theoretical directions for its further comprehensive exploitation and utilization. The contents of general nutrients,amino acid composition and mineral elements were detected. The results showed high protein content of （92.60±4.24）g/100g （dry weight） and （96.46±5.32）g/100g （dry weight）, low fat content with （6.24 ± 1.78）g/100g （dry weight） and （4.02 ±0.62）g/ 100g （dry weight） respectively in the meat and skin of farmed Chinese giant salamander. There was total of 18 different amino acids in the meat,including 6 kinds of delicious amino acids（DAA） and 8 kinds of essential amino acids（EAA） for human body accounted for 42.77%,and 40.72% respectively. The ratio of essential amino acids to non-essential amino acids was 68.68%,in line with the Food and Agriculture Organization of the United Nations/World Health Organization（FAO/WHO） standard with no limited amino acids. According to amino acid score（AAS） and chemical score（CS）,the first limited amino acid was Tryptophan（Trp） and the second limited amino acid was Leucine（Leu） in the protein of the skin while the skin was rich in sulphur amino acids. In addition, Potassium（K） was the most predominant mineral element found in the meat and skin and the contents were （1184.96±73,84）mg/100g （dry weight） and （391.24±87.69）mg/100g （dry weight） ,respectively. In trace elements,the contents of zinc（Zn） and iron（Fe） were much higher.
出处
《食品工业科技》
CAS
CSCD
北大核心
2012年第24期385-388,共4页
Science and Technology of Food Industry
基金
"十一五"国家科技支撑计划课题(2008BAD94B09)
欧盟项目(222889)
上海市科委工程中心建设(11DZ2280300)
上海市教育委员会重点学科建设项目资助(J50704)
关键词
大鲵
营养成分
品质评价
Chinese giant salamander（Andrias davidianus）
nutritional components
evaluation of nutritive quality
