Abstract

This data set contains the underlying data of the scientific publication: Palagano R. et al., 2020. Compliance with EU vs. extra-EU labelled geographical provenance in virgin olive oils: A rapid untargeted chromatographic approach based on volatile compounds. LWT - Food Science and Technology, 130, 109566. https://doi.org/10.1016/j.lwt.2020.109566. To ensure that consumers are not misled, the European Regulation n. 29/2012 establishes specific rules to report the geographical origin of extra virgin and virgin olive oils (VOOs) on the product label, but an analytical procedure to verify this information is not defined. A flash gas chromatography and untargeted chemometric data elaborations for the rapid screening of 210 extra virgin and virgin olive oils with a different geographical provenance was applied. The analysis of volatile compounds was carried out by the Flash Gas Chromatography Electronic Nose Heracles II (Alpha MOS, Toulouse, France). The instrument was equipped with two metal capillary columns (MXT-5 and MXT-1701) working in parallel mode. At the end of each column, a FID detector was placed and the acquired signal was digitalized every 0.01 sec. This data set contains the raw data (intensity values for each point of the chromatogram considering that the signal was digitalized every 0.01 sec) obtained from the analysis of all the sample by flash gas chromatography. Only data obtained from the column MXT-5 are reported since this column showed a higher discriminating power.