关键词: 青干金枪鱼, 鲔, 营养成分, 营养评价

Abstract: In this paper, the nutritional composition in the muscle of Thunnus tonggol and Euthynnus affinis are comprehensively analyzed. The moisture、ash contents、crude protein contents、the total content of amino and crude fat contents of Thunnus tonggol are respectly 71.13%、 1.56%、24.56%、24.56% and 0.63%.For Euthynnus affinis,they are respectly 72.27%、1.38%、23.44% and 1.47%. The muscle of Thunnus tonggol and Euthynnus affinis containe abundant macro elements and micro elements, and the certain hazardous substances of Thunnus tonggol and Euthynnus affinis are lower than standard. The essential amino acids index (EAAI) of Thunnus tonggol and Euthynnus affinis are respectly 96.23 and 96.66. This indicates that the nutritional value of amino acids of this two kinds of fish are both very high,they are good resource of high quality protein. Both of they are rich in poly-unsaturated fatty acids, the content of poly-unsaturated fatty acids such as DHA.EPA of Thunnus tonggo and Euthynnus affinis are 52.07% and 58.09%.

Key words: Thunnus tonggol, Euthynnus affinis,, nutrient content,, analysis