Triacylglycerols are a Rich Source of Polyunsaturated Fatty Acids in Red King Crab Juveniles (Paralithodes camtschaticus)

• Published in: Current Nutrition & Food Science
• Main Author: Sikorskaya, Tatyana V.
• Other Authors: Russian Science Foundation
• Format: Article in Journal/Newspaper
• Language: English
• Published: Bentham Science Publishers Ltd. 2023
• Subjects: Public Health, Environmental and Occupational Health; Nutrition and Dietetics; Food Science; okhotsk sea; Paralithodes camtschaticus; Red king crab
• Online Access: http://dx.doi.org/10.2174/1573401318666220907164351; https://www.eurekaselect.com/article/download?doi=10.2174/1573401318666220907164351; https://www.eurekaselect.com/208625/article

Abstract: In the Sea of Japan and the Okhotsk Sea, the red king crab Paralithodes camtschaticus is the major commercial species of the crab. The crab is a rich source of polyunsaturated fatty acids (PUFAs). The composition of triacylglycerol (TG) molecular species in freshly collected juveniles of P. camtschaticus has been determined for the first time. By supercritical fluid chromatography with mass-spectrometry, 45 molecular species of TG were identified. Most of the molecular species contained docosahexaenoic acid (DHA; 22:6n-3), eicosapentaenoic acid (EPA; 20:5n-3), arachidonic acid (AA, 20:4n-6), and monounsaturated fatty acid 18:1. Thus, DHA, EPA, and AA received from the diet are used to build phospholipids (PL) and also stored in TG in P. camtschaticus juveniles. Therefore, the crab is a rich source of PUFAs, which are concentrated both in structural PL and in reserve TG.