In recent years, marine organisms have been in the focus of numerous studies related to identification and extraction of new natural products. They are characterized by high content of long-chain polyunsaturated fatty acids (PUFAs), phospholipids, sterols, fat-soluble vitamins and others. Marine lipids are rich in omega-3 PUFA, predominantly eicosapentaenoic acid (EPA, 20: 5n-3) and docosahexaenoic acid (DHA, 22: 6n-3) that has shown to have many beneficial effects on the cardiovascular system.
More and more attention has recently been paid to marine organisms high in omega-3 fatty acids bonded to phospholipids because they are more digestible in the gastrointestinal tract due to the fact that phospholipids are natural emulsifiers that improve the absorption of nutrients in humans.
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