Marín-Obispo Luis Martín, Mayorga-Martínez Arturo A, Obispo-Fortunato Diana Jessica, Clorio-Carrillo Jorge A, Gonzalez Viejo Claudia, Fuentes Sigfredo, Schwinghamer Timothy, Patiño-González Verónica, Hernández-Brenes Carmen
Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, NL 64700, Mexico.
Tecnologico de Monterrey, Institute for Obesity Research, Ave. Eugenio Garza Sada 2501, Monterrey, NL 64700, Mexico.
Food Chem X. 2025 Apr 9;27:102451. doi: 10.1016/j.fochx.2025.102451. eCollection 2025 Apr.
The lack of regulations on avocado oil authenticity enabled producers to blend it with cheaper oils without declaring it on the label. This study explored fatty acids (FA) and fatty alcohol esters (FAE) as innovative markers of avocado oil purity and extraction method. Only 40 % of the samples met the FA standards. Regarding FAE, extra virgin samples showed a maximum concentration of 2674.12 ± 570.98 mg total FAE·kg oil, significantly higher than the 640.98 ± 220.06 mg total FAE·kg oil observed in refined samples, making FAE novel markers of extraction method. Furthermore, a canonical discriminant analysis using Wilk's statistic (Λ = 0.008, = 8.87, < 0.0001), based on fault concentrations (high, medium, low) of the allegedly pure samples, revealed that the high- and medium-fault clusters aligned closely with declared blends containing canola or safflower oils. FA and FAE are promising molecules to detect adulteration in avocado oil.
由于缺乏对鳄梨油纯度的相关规定，生产商可以将其与较便宜的油混合，且无需在标签上标明。本研究探索了脂肪酸（FA）和脂肪醇酯（FAE）作为鳄梨油纯度和提取方法的创新性指标。只有40%的样本符合FA标准。关于FAE，特级初榨样本中总FAE的最大浓度为2674.12±570.98毫克/千克油，显著高于精炼样本中观察到的640.98±220.06毫克/千克油，这使得FAE成为提取方法的新指标。此外，基于所谓纯样本的故障浓度（高、中、低），使用威尔克斯统计量（Λ=0.008，F=8.87，P<0.0001）进行的典型判别分析表明，高故障和中故障聚类与宣称含有油菜籽油或红花油的混合油紧密对齐。FA和FAE是检测鳄梨油掺假的有前景的分子。
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