Journal
FOOD CONTROL
Volume 139, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2022.109055
Keywords
Virgin olive oil; Authenticity; Geographical origin; Sesquiterpene hydrocarbons; Fingerprint; SPME-GC-MS; PDO
Categories
Funding
- project AUTENFOOD ACCIO-Generalitat de Catalunya
- European Union through the ERDF programme for Catalonia 2014-2020 [COMRDI-15-1-0035]
- Spanish Ministry of Universities [FPU16/01744, FPU20/01454]
- Ramon y Cajal grant - MCIN/AEI [RYC-2017-23601]
- ESF Investing in your future
- CERCA Program of the Generalitat de Catalunya
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This study aims to develop an instrumental tool to assess EVOO's compliance with PDO label-declaration and successfully demonstrates the effectiveness of the proposed strategy through a case study on PDOs from Catalonia.
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%.
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