ABSTRACT Lipid profile of the oyster Crassostrea talienwhanensis from the Yellow Sea was evaluated based on the seasonal changes in lipid categories, phospholipid (PL) categories, fatty acid (FA) composition, atherogenicity index (IA), thrombogenicity index (IT), and glycerophospholipid (GP) molecular species. We observed that the samples harvested in February contained higher levels of polyunsaturated fatty acid (PUFA) (48.77% of total FAs) and PL (52.12% of total lipids) and had lower IA (0.29). In addition, more than 290 GP molecular species of glycerophosphocholine (GPCho), glycerophosphoethanolamine (GPEtn), glycerophosphoserine (GPSer), and glycerophosphoinositol (GPIns) were determined. The molecular species containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) constituted 75.24% of total GPCho in the samples harvested in February. Considering the lipid profile, oyster Crassostrea talienwhanensis harvested in February had better nutritional value.

中文翻译：

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黄海区塔连湾牡蛎脂质分布的季节性变化

摘要 基于脂质类别、磷脂 (PL) 类别、脂肪酸 (FA) 组成、致动脉粥样硬化指数 (IA)、血栓形成指数 (IT) 和甘油磷脂的季节性变化，评估了黄海牡蛎的脂质分布(GP) 分子种类。我们观察到，2 月份收获的样品含有较高水平的多不饱和脂肪酸 (PUFA)（占总脂肪酸的 48.77%）和 PL（占总脂质的 52.12%），并且具有较低的 IA（0.29）。此外，还测定了甘油磷酸胆碱 (GPCho)、甘油磷酸乙醇胺 (GPEtn)、甘油磷酸丝氨酸 (GPSer) 和甘油磷酸肌醇 (GPIn) 的 290 多种 GP 分子种类。含有二十碳五烯酸 (EPA) 和二十二碳六烯酸 (DHA) 的分子种类共 75 个。2 月份收获的样品中 GPCho 总量的 24%。考虑到脂质特征，2月份收获的牡蛎Crassostrea talienwhanensis具有更好的营养价值。