Extra virgin olive oil (EVOO) is increasingly in demand for its unique sensory characteristics and health benefits. However, this growing popularity has led to an increase in fraud; the most common being dilution with lower-value oils. These practices not only reduce the nutritional quality of EVO oil, but can also introduce harmful substances into the product. To counter these fraudulent activities, several analytical techniques have been developed. The most reliable markers are based on the analysis of fatty acids and minor components such as sterols, tocopherols, triterpene alcohols, phenolic compounds, phospholipids, volatile compounds, and pigments. In parallel, growing consumer interest in authentic, high-quality EVOO has encouraged the application of methods based on the use of high-resolution mass spectrometry to trace the geographic origin of oil. In the absence of advanced techniques, the analysis of stigmastadienes and sterol profile has proven to be an effective tool in detecting adulteration.
L'olio extravergine di oliva (EVOO, dall’inglese Extra Virgin Olive Oil) è sempre più richiesto per le sue caratteristiche sensoriali uniche e i benefici per la salute. Questa crescente popolarità ha però portato a un aumento delle frodi; la più comune è rappresentata dalla diluizione con oli di minor valore. Queste pratiche non solo riducono la qualità nutrizionale dell'olio EVOO, ma possono anche introdurre nel prodotto sostanze dannose. Per contrastare queste attività fraudolente, sono state sviluppate diverse tecniche analitiche. I marcatori più affidabili si basano sull'analisi di acidi grassi e componenti minori come steroli, tocoferoli, alcoli triterpenici, composti fenolici, fosfolipidi, composti volatili e pigmenti. Parallelamente, l’interesse crescente dei consumatori verso un EVOO autentico e di alta qualità ha favorito l’applicazione di metodiche basate sull'impiego della spettrometria di massa ad alta risoluzione per tracciare l'origine geografica dell'olio. In assenza di tecniche avanzate, l'analisi degli stigmastadieni e del profilo sterolico si è rivelata uno strumento efficace nel rilevare le adulterazioni.
Come garantire l'autenticità, la tracciabilità e la sicurezza dell'olio extravergine di oliva
PERISSUTTI, GIOVANNI
2024/2025
Abstract
Extra virgin olive oil (EVOO) is increasingly in demand for its unique sensory characteristics and health benefits. However, this growing popularity has led to an increase in fraud; the most common being dilution with lower-value oils. These practices not only reduce the nutritional quality of EVO oil, but can also introduce harmful substances into the product. To counter these fraudulent activities, several analytical techniques have been developed. The most reliable markers are based on the analysis of fatty acids and minor components such as sterols, tocopherols, triterpene alcohols, phenolic compounds, phospholipids, volatile compounds, and pigments. In parallel, growing consumer interest in authentic, high-quality EVOO has encouraged the application of methods based on the use of high-resolution mass spectrometry to trace the geographic origin of oil. In the absence of advanced techniques, the analysis of stigmastadienes and sterol profile has proven to be an effective tool in detecting adulteration.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/95605