野生与养殖三疣梭子蟹营养品质分析及其比较

Objective： To comprehensive evaluate nutritional quality of Portunus trituberculatus, the nutritional composition and nutritive value in muscle, hepatopancreas and gonad were compared and analyzed. Method： Crude protein, crude lipid , amino acids and fatty acids were determinated by adopting national standard method. Results：Crude protein content in the gonad was the highest, 26.72 % for the (wild) and 30.14% (culture), crude fat content in the hepatopancreas was up to 14.64% (culture) and 29.19% (wild);.There were 38 kinds of fatty acids and the fatty acid composition in hepatopancreas was more rich than in muscle and gonad. The content of EPA+DHA reached up to 20.21%～36.91%.The total content of amino acids（TAA） was 23.76～73.18(g/100g dry weight), the contents of TAA, EAA and DAA were muscle＞gonad＞hepatopancreas. The containtes of crude lipid and ∑PUFA in wild Portunus trituberculatus were more than cultivated ones and so were the content of the essential amino acids (EAA), the rate essential amino acids/total amino acids（E/T） and essential amino acids /nonessential amino acids（E/N）in muscle and gonad. Conclusion：Both wild and cultivated Portunus trituberculatus belong to excellent nutrition composition and nutritional quality. The wild ones are better than cultivated ones in quality and flavor.