Kritikou Evangelia, Kalogiouri Natasa P, Kostakis Marios, Kanakis Dimitrios-Christos, Martakos Ioannis, Lazarou Constantina, Pentogennis Michalis, Thomaidis Nikolaos S
Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
Foods. 2021 Sep 6;10(9):2102. doi: 10.3390/foods10092102.
Olive oil is famous due to the nutritional properties and beneficial health effects. The exceptional properties of virgin (VOO) and extra virgin olive oil (EVOO) are credited to the bioactive constituents of their polar fraction, the phenolic compounds. The concentration and composition of biophenols can be influenced by the geographical origin, the cultivar, as well as several agronomic and technological parameters. In this study, an ultra-high-performance liquid chromatography coupled to quadrupole-time of flight tandem mass spectrometry (UHPLC-QTOF-MS) method was used to determine biophenols in Greek EVOOs from five islands originating from the North Aegean Region (Chios, Fournoi, Ikaria, Lesvos, and Samos) through target and suspect screening. In total, 14 suspect and 5 target compounds were determined in the analyzed EVOOs. The quantitative and semiquantitative results were compared to investigate discriminations between different regions. Significant differences were found between the islands based on the overall phenolic content and the concentration levels of individual compounds, as well. In the case of Lesvos, the territory was separated in subdivisions (zones), and each zone was studied individually.
橄榄油因其营养特性和有益健康的功效而闻名。初榨橄榄油（VOO）和特级初榨橄榄油（EVOO）的卓越特性归功于其极性部分的生物活性成分，即酚类化合物。生物酚的浓度和组成会受到地理来源、品种以及若干农艺和技术参数的影响。在本研究中，采用超高效液相色谱-四极杆飞行时间串联质谱法（UHPLC-QTOF-MS），通过目标筛选和可疑物筛选，测定了来自北爱琴海地区五个岛屿（希俄斯岛、富尔诺伊岛、伊卡里亚岛、莱斯博斯岛和萨摩斯岛）的希腊特级初榨橄榄油中的生物酚。在所分析的特级初榨橄榄油中，共测定了14种可疑化合物和5种目标化合物。对定量和半定量结果进行了比较，以研究不同地区之间的差异。基于总酚含量和各化合物的浓度水平，各岛屿之间也发现了显著差异。就莱斯博斯岛而言，该地区被划分为若干分区（区域），并对每个区域进行了单独研究。
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