Journal
FOOD CHEMISTRY
Volume 241, Issue -, Pages 97-103Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.08.076
Keywords
Sea urchin; Lipid class composition; Phospholipid class composition; Molecular species; HPLC-ESI-MS/MS
Funding
- Public Science and Technology Research Funds Projects of Ocean [201505029]
- Project of Distinguished Professor of Liaoning Province [2015-153]
- Program for Liaoning Excellent Talents in University [LR2015006]
- Liaoning Provincial Natural Science Foundation of China [2015020781]
- Program for Dalian High-Level Innovative Talent [2015R0007]
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Sea urchin gonad has been regarded as a healthy food. Although previous studies have suggested that sea urchin gonad might serve as a potential rich source of long chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFA) enriched phospholipid (PL), the molecular species profile of its PL has rarely been reported. In this study, about 200 molecular species of glycerophospholipid (GP), including glycerophosphocholine, glycerophosphoethanolamine, glycerophosphoserine, glycerophosphoinositol, lysoglycerophosphocholine and lysoglycerophosphoethanolamine, in gonads from three species of sea urchin (Glyptocidaris crenularis, Strongylocentrotus intermedius and Strongylocentrotus nudus) were characterized using tandem mass spectrometry. Most of the predominant GP molecular species contained PUFA, especially eicosapentaenoic acid (EPA). Meanwhile, the sea urchin lipids contained a high proportion of PL (39.45-50.30% of total lipids) and PUFA (34.47-46.56% of total FA). Among PL, phosphatidylcholine (67.88-72.58 mol%) was dominant. Considering the high level of PUFA enriched GP, sea urchin gonads provide great potential as health-promoting food for human consumption.
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