The content of fatty acids and nutritional indexes of lipids of the Antarctic krill Euphausia superba collected from three regions of the Atlantic sector of Antarctic

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Abstract

The content of total lipids and fatty acids in tissues and body segments of adult Antarctic krill caught in three regions of the Atlantic sector of Antarctica, differing in environmental conditions, was studied. Significant differences in terms of lipid and fatty acid status of the Antarctic krill tissues and body segments in studied regions were shown. Analysis of the main metabolic indices of the E. superba lipids quality testifies to its high nutritional value, including due to the high unsaturation of its lipids, favorable ratios of physiologically significant and essential fatty acids for human health, which can be considered as a distinctive biochemical characteristic of this species. The results of the study can be used to form a scientifically based approach to further technological processing of raw krill and for the targeted extraction of certain substances and components of a lipid nature.

About the authors

S. A. Murzina

Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences

Author for correspondence.
Email: murzina.svetlana@gmail.com
Russian Federation, Petrozavodsk

V. P. Voronin

Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences

Email: murzina.svetlana@gmail.com
Russian Federation, Petrozavodsk

D. G. Bityutskii

Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences; Russian Federal Research Institute of Fisheries and Oceanography (FSBSI “VNIRO”)

Email: murzina.svetlana@gmail.com
Russian Federation, Petrozavodsk; Moscow

N. N. Nemova

Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences

Email: murzina.svetlana@gmail.com

Academician of the RAS

Russian Federation, Petrozavodsk

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