Lipids and Fatty Acids of the Gonads of Sea Urchin Diadema setosum (Echinodermata) From the Coastal Area of the Nha Trang Bay,Central Vietnam |
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| Authors: | Svetlana A Murzina Polina Yu Dgebuadze Svetlana N Pekkoeva Viktor P Voronin Elena S Mekhova Nguyen T H Thanh |
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| Affiliation: | 1. Laboratory of Environmental Biochemistry, Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, 11 Pushkinskaya Street, Petrozavodsk, Karelia, 185910 Russia;2. Laboratory of Behavior of Lower Vertebrates, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninskiy prospekt, Moscow, Moscow, 119071 Russia;3. Laboratory of Morphology and Ecology of Marine Invertebrates, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninskiy prospekt, Moscow, Moscow, 119071 Russia;4. Coastal Branch, Russian-Vietnamese Tropical Research and Technology Center, 30 Nguyen Thien Thuat, Nha Trang, Khánh Hòa, 650000 Vietnam |
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| Abstract: | The sea urchin Diadema setosum is edible and desirable as food by locals in central Vietnam and a promising target for potential fishing. The lipid profiles of the gonads of the sea urchin inhabiting the coastal area in Nha Trang Bay are studied for the first time. The determination of the content of the total lipids (TL), total phospholipids (PL), monoacylglycerols (MAG), diacylglycerols (DAG), triacylglycerols (TAG), cholesterol (Chol), sterol esters, and free fatty acids (FFA) is analyzed by high-performance thin layer chromatography (HPTLC); the phosphatidylserine (PS), phosphatidylethanolamine (PE), phosphatidylinositol (PI), phosphatidylcholine (PC), lysophosphatidylcholine (LPC), and sphingomyelin (SM) are determined by high-pressure liquid chromatography (HPLC); and the fatty acid levels of TLs are identified using gas chromatography (GC). Non-polar TAG, FFA, Chol, and DAG dominated. The content of total PL is significant. PC is abundant among PL fractions, followed by PE, PI, and PS. The TLs contain a high proportion of PUFA, mainly due to arachidonic fatty acid and eicosapentanoic fatty acid. The (n?6)/(n?3) ratio is 1.68, and the atherogenic and thrombogenic indexes of D. setosum are 1.13 and 0.73. The results can be used in the development of marine bioprospecting and methodological approaches for the creation of functional substances. |
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| Keywords: | echinoids fatty acids lipids nha trang bay south-china sea |
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