瓯江口鲚属鱼类产卵期肌肉营养成分分析与评价  

Analysis and Evaluation of Muscle Nutrient Composition of Fishes of the Genus Coilia in Oujiang River Estuary during Oviposition

作　　者：郝辉擘 蒋日进 陈健 刘明智 马石鹏 杨凡 李霞芳 印瑞 冯广朋[3] HAO Hui-bo;JIANG Ri-jin;CHEN Jian(Marine and Fishery Institute of Zhejiang Ocean University,Zhejiang Marine Fisheries Research Institute,Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds,Ministry of Agriculture and Rural Affairs,Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resource of Zhejiang Province,Zhoushan 316021;School of Marine Science and Technology of Zhejiang Ocean University,Zhoushan 316022,China)

机构地区：[1]浙江海洋大学海洋与渔业研究所,浙江省海洋水产研究所,农村农业部重点渔场渔业资源科学观测试验站,浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316021 [2]浙江海洋大学海洋科学与技术学院,浙江舟山316022 [3]中国水产科学研究院东海水产研究所

出　　处：《浙江海洋大学学报（自然科学版）》2022年第5期448-454,共7页Journal of Zhejiang Ocean University：Natural Science

基　　金：浙江省公益性技术应用研究项目(LGN20C190012);国家重点研发计划“蓝色粮仓科技创新”重点专项(2020YFD0900805)。

摘　　要：为了评价瓯江口刀鲚、凤鲚的营养品质,对刀鲚和凤鲚肌肉的营养成分进行测定。结果显示,刀鲚肌肉中的粗蛋白含量(16.99%)显著高于凤鲚(15.88%)(P<0.05),灰分和粗脂肪显著低于凤鲚(P<0.05)。刀鲚和凤鲚氨基酸组成基本一致,均含有18种氨基酸,总量分别占鱼肉鲜样的16.92%和15.31%,其中7种EAA(Leu、Ile、Phe、Tyr、Thr、Val、Lys)、2种HEAA(Arg、His)和6种NEAA(Asp、Glu、Ala、Cys-s、Ser、Tyr)的含量在2种鱼肌肉间均存在显著性差异(P<0.05)。氨基酸总量、鲜味氨基酸总量、EAA/TAA、EAA/NEAA存在显著性差异(P<0.05)。刀鲚和凤鲚肌肉中检测出脂肪酸种类相同,均有29种脂肪酸,其中饱和脂肪酸9种,8种单不饱和脂肪酸和12种多不饱和脂肪酸。2种鱼肌肉脂肪酸含量关系均为∑SFA>∑MUFA>∑PUFA。刀鲚中饱和脂肪酸含量除C21:0外均显著低于凤鲚,多不饱和脂肪酸含量除DPA外均显著低于凤鲚。刀鲚肌肉中二十碳五烯酸和二十二碳六烯酸(EPA+DHA)含量为7.26%低于凤鲚的9.00%。结果表明,刀鲚和凤鲚肌肉营养丰富,二者均为理想蛋白源,不饱和脂肪酸种类多样且含量丰富,二者均具有较高的营养价值。In order to evaluate the nutritional quality of Oujiang River Coilia nasus and C.mystus,the nutritional composition of 5 and 6 muscles was determined.The results showed that crude protein content in muscle of C.nasus was significantly higher than that of C.mystus(P<0.05),while ash and crude fat content were significantly lower than that of C.mystus(P<0.05).The amino acid composition of C.nasus and C.mystus was basically the same,containing 18 kinds of amino acids,accounting for 16.92%and 15.31%of fresh fish samples,respectively.The contents of 7 species of EAA(Leu,Ile,Phe,Tyr,Thr,Val,Lys),2 species of HEAA(Arg,His)and 6 species of NEAA(Asp,Glu,Ala,CYS-S,Ser,Tyr)showed significant differences between the two species(P<0.05).There were significant differences in total amino acids,total umami amino acids,EAA/TAA and EAA/NEAA(P<0.05).The same 29 fatty acids were detected in both C.nasus and C.mystus muscles,including 9 fatty acid,8 monounsaturated fat and 12 unsaturated fat.The fatty acid contents in muscle of C.nasus and C.mystus were∑SFA>∑MUFA>∑PUFA.The saturated fatty acid content of C.nasus except C21:0 was significantly lower than that of C.mystus,and the polyunsaturated fatty acid content except DPA was significantly lower than that of C.mystus.The content of eicosapentaenoic acid and docosahexaenoic acid(EPA+DHA)in muscle of C.nasus was 7.26%,which was lower than that of C.mystus(9.00%).The results showed that the muscles of C.nasus and C.mystus were rich in nutrition,both were ideal protein sources,the unsaturated fat are diverse and abundant,both of which had high nutritional value.

关 键 词：刀鲚 凤鲚 营养成分 氨基酸 脂肪酸 

分 类 号：S917.4[农业科学—水产科学]