海南近海青干金枪鱼Thunnus tonggol和小头鲔Euthynnus affinis幼鱼的营养成分分析及评价  

Analysis and Evaluation of Nutritional Compositions of Juvenile Tuna Fishes in Offshore Waters of Hainan Province

作　　者：周胜杰 杨蕊[1,2,3] 韩明洋 王一福 于刚 马振华 ZHOU Shengjie;YANG Rui;HAN Mingyang;WANG Yifu;YU Gang;MA Zhenhua(Tropical Fisheries Research and Development Center,South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Sanya 572018,China;Key Laboratory of South China Sea Fishery Resource Exploitation&Utilization,Ministry of Agriculture and Rural Affairs,Guangzhou 510300,China;Sanya Tropical Fisheries Research Institute,Sanya 572018,China)

机构地区：[1]中国水产科学研究院南海水产研究所热带水产研究开发中心,海南三亚572018 [2]农业农村部南海渔业资源开发利用重点实验室,广东广州510300 [3]三亚热带水产研究院,海南三亚572018

出　　处：《水产学杂志》2021年第1期23-28,共6页Chinese Journal of Fisheries

基　　金：中国水产科学研究院基本科研业务费资助(2020XT0301、2020TD55);广西创新驱动发展专项资金项目(桂科AA18242031).

摘　　要：测定了采自海南陵水黎族自治县新村镇附近海域野生的体质量为132~199 g的青干金枪鱼Thunnus tonggol和体质量为311~504 g的小头鲔Euthynnus affinis幼鱼全鱼及肌肉的营养成分,分析其利用价值。结果显示,与小头鲔相比,青干金枪鱼腹脂率低,出肉率高;总蛋白含量高,有多种脂肪酸,且多不饱和脂肪酸含量较高,DHA和EPA含量丰富;鲜味氨基酸含量较高。青干金枪鱼和小头鲔均属高蛋白、高不饱和脂肪酸且鲜味氨基酸含量丰富的鱼类,蛋白含量优于黄鳍金枪鱼Thunnus albacares、蓝鳍金枪鱼Thunnus albacares和大眼金枪鱼Thunnus obesus,是一种蛋白质含量高、脂肪率低的优良营养来源。The nutritional compositions were analyzed in whole fish and muscles of the wild juvenile tunas Thunnus tonggol with body weight of 132~199 g and Euhynnus affinis with body weight of 311~504 g collected from Sea area near Xincun Town,Lingshui Li Autonomous County,Hainan Province,and their utilization value was evaluated in order to find out the body and muscle composition of wild tunas.The results showed thatThunnus tonggol has lower abdominal fat rate,higher dressing rate,total protein content,rich fatty acids and higher proportion of polyunsaturated fatty acids,rich in docosahexaenoic acid(DHA)and eicosapentaenoic acid(EPA),and higher flavor amino acid content compared with Euthynnus affinis.Compared with other studies,Thunnus tonggol and Euthynnus affinis are high-protein,high-unsaturated fatty acids and rich in amino acid content,which is better than those in yellowfin tuna(Thunnus albacares),bluefin tuna(Thunnus maccoyii)and bigeye tuna(Thunnus obesus).

关 键 词：青干金枪鱼 小头鲔 营养成分 不饱和脂肪酸 

分 类 号：TS254.1[轻工技术与工程—水产品加工及贮藏工程]