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Lipid Profile and Glycerophospholipid Molecular Species in Two Species of Edible Razor Clams Sinonovacula constricta and Solen gouldi
Author(s) -
Wu ZiXuan,
Zhou DaYong,
Zhao ManTong,
Xie HongKai,
Liu ZhongYuan,
Liu YanFei,
Liu YuXin,
Shahidi Fereidoon
Publication year - 2019
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1002/lipd.12153
Subject(s) - glycerophospholipid , glycerophospholipids , docosahexaenoic acid , biology , phospholipid , polyunsaturated fatty acid , eicosapentaenoic acid , biochemistry , phosphatidylethanolamine , chemistry , fatty acid , phosphatidylcholine , food science , membrane
Total lipids were extracted from razor clams Sinonovacula constricta and Solen gouldi , and the molecular species of glycerophospholipid (Gpl) including choline glycerophospholipid (ChoGpl), ethanolamine glycerophospholipid (EtnGpl), serine glycerophospholipid (SerGpl), inositol glycerophospholipid (InsGpl), lysoChoGpl, lysoEtnGpl, and lysoSerGpl were characterized using a direct‐infusion tandem mass spectrometric method for the first time. Meanwhile, the lipid class composition and phospholipid (PL) class composition as well as the fatty acid (FA) composition of total lipids, triacylglycerol (TAG), and PL were also investigated. About 238 and 235 molecular species were characterized, respectively, in Sinonovacula constricta and Solen gouldi. The majority of the dominant Gpl molecular species contained n‐3 long‐chain polyunsaturated fatty acids (n‐3 LC‐PUFA), especially docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). Also, razor clam lipids contained a high‐proportioned PL (52.19–65.41% of total lipids) and PUFA (47.94–54.81 mol%). Furthermore, PL contained a higher proportion of PUFA (63.05–67.13 mol%), especially DHA (20.04–22.47 mol%) and EPA (16.27–21.46 mol%) than TAG (the corresponding values being 33.73–34.45, 11.95–12.27, and 8.13–0.8.99 mol%, respectively). Meanwhile, phosphatidylcholine (44.38–46.21 mol%) and phosphatidylethanolamine (38.84–39.95 mol%) were dominant among PL. In consideration of the high proportion of PUFA‐enriched Gpl, razor clam plays a great role in promoting human health.