Rey Felisa, Gaspar Luís, Ricardo Fernando, Pita Cristina, do Rosário Domingues Maria, Calado Ricardo
CESAM - Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.
Mass Spectrometry Centre & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.
NPJ Sci Food. 2025 Aug 9;9(1):173. doi: 10.1038/s41538-025-00520-w.
The common octopus (Octopus vulgaris) is a highly valued seafood species, whose flavour and palatability are often linked to its geographic origin. However, globalized supply chains have increased the risk of mislabelling. Lipid metabolism in marine organisms is shaped by environmental conditions, then lipidomics offers a promising tool for origin authentication. This study used HILIC-LC-MS&MS/MS to profile the polar lipidome of O. vulgaris arm muscle from three Iberian Atlantic landing sites: Ría de Arousa (Spain), Peniche, and Santa Luzia (Portugal). While total lipid content was consistent across sites, Peniche samples showed lower phospholipid levels, and Santa Luzia samples showed elevated LPE/PE and LPC/PC ratios, possibly reflecting stress or degradation. Ether-linked phospholipids and the sphingolipid CAEP were most abundant in Ría de Arousa, contributing to site discrimination. These findings demonstrate the potential of lipidomic profiling as a tool for seafood traceability, offering insights into environmental and dietary influences on lipid composition.
普通章鱼（Octopus vulgaris）是一种备受重视的海鲜品种，其风味和适口性通常与其地理来源有关。然而，全球化的供应链增加了贴错标签的风险。海洋生物的脂质代谢受环境条件影响，因此脂质组学为产地鉴定提供了一种有前景的工具。本研究使用亲水相互作用液相色谱-质谱联用及串联质谱（HILIC-LC-MS&MS/MS）对来自三个伊比利亚大西洋登陆点的普通章鱼腕肌的极性脂质组进行了分析：西班牙的阿罗萨里亚（Ría de Arousa）、佩尼切（Peniche）和葡萄牙的圣卢西亚（Santa Luzia）。虽然各地点的总脂质含量一致，但佩尼切的样本显示磷脂水平较低，而圣卢西亚的样本显示溶血磷脂酰乙醇胺/磷脂酰乙醇胺（LPE/PE）和溶血磷脂酰胆碱/磷脂酰胆碱（LPC/PC）比率升高，这可能反映了应激或降解。醚键连接的磷脂和鞘脂CAEP在阿罗萨里亚含量最高，有助于区分产地。这些发现证明了脂质组学分析作为海鲜可追溯性工具的潜力，为环境和饮食对脂质组成的影响提供了见解。
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