Incidence of polycyclic aromatic hydrocarbons in vegetable oil blends
Incidence of polycyclic aromatic hydrocarbons in vegetable oil blends
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DOI：
10.1016/j.foodcont.2014.06.028
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发表时间：
2014-12
期刊：
影响因子：
6
通讯作者：
S. Tfouni;Gabriela R. Padovani;R. M. Reis;R. Furlani;M. C. Camargo
中科院分区：
文献类型：
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作者：
S. Tfouni;Gabriela R. Padovani;R. M. Reis;R. Furlani;M. C. Camargo
多年来，巴西特级初榨橄榄油的消费量一直在增长。然而，由于它是一种昂贵的产品，许多消费者倾向于用更便宜的替代品来替代特级初榨橄榄油，例如植物油混合物（主要是橄榄油和大豆油的混合物）。在预设的研究中，不同品牌的油混合物的13个多环芳烃的出现进行了评估。该方法包括用己烷和N，N-二甲基甲酰胺进行液-液萃取，然后用C18柱进行SPE净化。通过具有荧光检测的HPLC进行分析。结果表明，所有样品中均检测到多环芳烃，其含量范围为2.59 ~ 85.30 μg/kg。观察到品牌之间以及同一品牌的不同批次之间的多环芳烃水平存在很大差异。大约50%的样品不符合巴西和/或欧洲法规中规定的BaP和PAH 4的最大允许水平。
The consumption of extra virgin olive oil has been growing in Brazil over the years. However, as it is an expensive product, many consumers tend to substitute extra virgin olive oil with a cheaper alternative, such as vegetable oil blends (mainly a mixture of olive and soybean oils). In the preset study, different brands of oil blends were evaluated for the occurrence of 13 polycyclic aromatic hydrocarbons. The method involved liquid–liquid extraction with hexane and N,N-dimethylformamide, followed by clean-up by SPE with C18 cartridges. Analyses were carried out by HPLC with fluorescence detection. PAHs were detected in all samples analyzed and the mean sum ranged from 2.59 μg/kg to 85.30 μg/kg. A high variability in PAHs levels between brands and between different batches of the same brand was observed. Approximately 50% of the samples were in disaccording with the maximum permitted levels for BaP and PAH4 established in the Brazilian and/or European regulations.