极地研究

极地研究 ›› 2024, Vol. 36 ›› Issue (4): 580-590.DOI: 10.13679/j.jdyj.20240035

• 研究论文 • 上一篇    下一篇

阿蒙森海六个不同南极磷虾群体营养成分分析

李莉珍1,黄洪亮2,杨嘉樑3,李灵智3,吉群1,韩旭磊1,宋炜3   

  1. 1中国水产科学研究院东海水产研究所, 上海 200090; 
    2上海海洋大学水产与生命学院, 上海 201306

  • 收稿日期:2024-03-27 修回日期:2024-06-06 出版日期:2024-12-31 发布日期:2025-01-15
  • 通讯作者: 宋炜
  • 作者简介:李莉珍, 女, 1999年生。硕士研究生, 主要从事水产生物技术研究。E-mail: anly1680@163.com

The nutritional composition of six groups of Antarctic krill (Euphausia superba) in the Amundsen Sea#br#

LI Lizhen1, 2, HUANG Hongliang1, 2, YANG Jialiang1, LI lingzhi1, JI Qun1,2, HAN Xulei1, 2, SONG Wei1, 2#br#   

  1. 1East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China;
    2College of Fisheries and Life sciences, Shanghai Ocean University, Shanghai 201306, China
  • Received:2024-03-27 Revised:2024-06-06 Online:2024-12-31 Published:2025-01-15

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摘要： 为深入了解南极磷虾(Euphausia superba)的营养成分, 本研究采用生化分析方法分别对阿蒙森海6个不同南极磷虾群体的一般营养成分、氨基酸、脂肪酸及矿物质元素含量进行了测定。检测结果显示: (1)水分、灰分、粗蛋白和碳水化合物含量分别在部分南极磷虾群体之间有显著性差异, 粗脂肪含量在6个南极磷虾群体之间均有显著性差异(P<0.05)。(2)6个南极磷虾群体中均未检出胱氨酸, 氨基酸总量和必需氨基酸含量均以A11-03群体最高。(3)6个南极磷虾群体必需氨基酸的氨基酸评分和化学评分均小于1。(4)A11-03、RA4-06、RA1-02、RA1-00、RA2-02和RA3-03群体检出的脂肪酸种类数量分别为24种、21种、20种、20种、18种和17种。二十碳五烯酸和二十二碳六烯酸含量以RA4-06群体最高。(5)6个南极磷虾群体中均含有丰富的矿物质元素, 常量元素和微量元素在不同群体间的含量差异显著(P<0.05)。以上检测结果表明, 6个南极磷虾群体均具有高蛋白、高不饱和脂肪酸的特点, RA4-06、A11-03群体与其余4个群体的营养价值差异大, RA2-02、RA1-02、RA3-03和RA1-00群体间营养价值接近。

关键词: 南极磷虾, 群体, 营养成分, 阿蒙森海

Abstract: Antarctic krill (Euphausia superba) is a well-recognized source of high-quality protein, which has high utilization value in the pharmaceutical chemical industry and as food and aquaculture feed. However, few studies involving comparative analysis of nutrients in different groups of Antarctic krill have been reported. To understand the nutritional composition of Antarctic krill, the levels of general nutrients, amino acids, fatty acids and mineral elements in six different groups of Antarctic krill from the Amundsen Sea were determined by biochemical analysis. There were significant differences in water, ash, crude protein and carbohydrate contents among some Antarctic krill groups, and there were significant differences in crude fat content among the six groups (P<0.05). In addition, in all six groups of Antarctic krill, cystine was not detected among eighteen common amino acids. The total amino acid content and essential amino acid content were the highest in the A11-03 group. The amino acid score and chemical score of essential amino acids in the six groups were both less than 1. The number of fatty acids detected in the A11-03, RA4-06, RA1-02, RA1-00, RA2-02 and RA3-03 groups was 24, 21, 20, 20, 18 and 17, respectively. The content of eicosapentaenoic acid and docosahexaenoic acid was the highest in the RA4-06 group. The six groups were rich in mineral elements, and the contents of major elements and trace elements were significantly different among different groups (P<0.05). In conclusion, the six Antarctic krill groups contained high levels of protein and high unsaturated fatty acids. The nutritional value of the RA4-06 and A11-03 groups was significantly different from that of the other four groups, and the RA2-02, RA1-02, RA3-03 and RA1-00 groups exhibited similar nutritional value.

Key words: Euphausia superba, group, nutritional composition, Amundsen Sea