2026-04-17T00:46:31Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1958602025-12-05T14:52:03Zcom_2072_1057col_2072_478917col_2072_478924

00925njm 22002777a 4500 dc Quintanilla-Casas, Beatriz author Torres Cobos, Berta author Guardiola Ibarz, Francesc author Romero, Agustí author Tres Oliver, Alba author Vichi, S. (Stefania) author 2023-03-23T08:54:22Z 2023-04-26T05:10:28Z 2022-04-26 2023-03-23T08:54:22Z Nowadays, 144 Protected Designations of Origin (PDO) and Protected Geographical Indications (PGI) under the EU quality schemes correspond to extra virgin olive oil (EVOO). As endorsed by the EU Food Fraud Network, PDO/PGI EVOOs are particularly vulnerable to fraudulent practices because of their high economic value. For this reason, the present study aims to develop an instrumental tool to assess the compliance of EVOO with PDO label-declaration using a large sample set (n = 350). As a case study, PDOs from Catalonia were used. Therefore, discriminant analysis based on the sesquiterpene hydrocarbon fingerprint determined by HS-SPME-GC-MS achieved to correctly classify an average of 93.6% of samples among the four Catalan PDOs, leaving unassigned the 6% of the total sampling (external validation results for 3 iterations). On the other hand, the proposed strategy allowed discriminating each Catalan PDO from non-PDO samples produced in different geographical areas with an efficiency between 95% and 99%. Oli d'oliva Química dels aliments Olive oil Food composition Geographical authentication of virgin olive oil by GC-MS sesquiterpene hydrocarbon fingerprint: Scaling down to the verification of PDO compliance