Geographical authentication of virgin olive oil by GC-MS sesquiterpene hydrocarbon fingerprint: Verifying EU and single country label-declaration

According to the last report from the European Union (EU) Food Fraud Network, olive oil tops the list of the most notified products. Current EU regulation states geographical origin as mandatory for virgin olive oils, even though an official analytical method is still lacking. Verifying the complian...

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Detalles Bibliográficos
Autores: Quintanilla-Casas, Beatriz, Torres Cobos, Berta, Guardiola Ibarz, Francesc, Servili, Maurizio, Alonso-Salces, Rosa M., Valli, Enrico, Bendini, Alessandra, Gallina Toschi, Tullia, Vichi, S. (Stefania), Tres Oliver, Alba
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/184259
Acceso en línea:https://hdl.handle.net/2445/184259
Access Level:acceso abierto
Palabra clave:Oli d'oliva
Antropometria
Química dels aliments
Olive oil
Anthropometry
Food composition
Descripción
Sumario:According to the last report from the European Union (EU) Food Fraud Network, olive oil tops the list of the most notified products. Current EU regulation states geographical origin as mandatory for virgin olive oils, even though an official analytical method is still lacking. Verifying the compliance of label-declared EU oils should be addressed with the highest priority level. Hence, the present work tackles this issue by developing a classification model (PLS-DA) based on the sesquiterpene hydrocarbon fingerprint of 400 samples obtained by HS-SPME-GC-MS to discriminate between EU and non-EU olive oils, obtaining an 89.6% of correct classification for the external validation (three iterations), with a sensitivity of 0.81 and a specificity of 0.95. Subsequently, multi-class discrimination models for EU and non-EU countries were developed and externally validated (with three different validation sets) with successful results (average of 92.2% of correct classification for EU and 96.0% for non-EU countries). Keywords: Authenticity; Fingerprint; Geographical origin; PLS-DA; SPME-GC-MS; Sesquiterpene hydrocarbons; Virgin Olive Oil.

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