2024-03-28T12:55:49Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2008842021-03-11T05:19:38Zcom_10261_68com_10261_2col_10261_321
http://hdl.handle.net/10261/200884
381288
Assessment of Vibrational Spectroscopy Performance in Geographical Identification of Virgin Olive Oils: A World Level Study
John Wiley & Sons
2019
artículo
Tena, Noelia
rp12024
Aparicio López, Ramón
rp12021
Baeten, Vincent
García-González, Diego L.
rp12023
Fernández-Pierna, Juan Antonio
Chemometric analysis
Geographical authenticity
Raman spectroscopy
Traceability
Virgin olive oils
2019-12
7 Figuras.-- 5 Tablas
In order to guarantee food integrity, testing methods should also include the tools needed to verify the geographical origin described on the label. In the particular case of virgin olive oil (VOO), regulatory bodies have yet to establish a standard for geographical identification. This manuscript describes a procedure based on Raman spectroscopy to identify the provenance of these oils based on a classification criterion (European vs non‐European VOOs). The sample collection is considered a relevant step in which multiple factors are taken into account (cultivar distribution, complexity of production in each location, new agricultural practices, and new/old cultivars). A total of 78 virgin olive oils collected around the world allow checking the classification accuracy of the model for identifying sample origin. The PLS‐model built around the Raman spectroscopic data is validated with a blind set of samples, and the results are evaluated in terms of false negative and false positive quality parameters. This study provides an analytical application to detect mislabeling and fraudulent practices related to the geographical provenance of virgin olive oils declared on the labels.
Practical Applications: The results of this study provide a robust mathematical model to assess the origin of virgin olive oils (EU vs non‐EU) based on spectroscopic data. Nowadays, the extensive knowledge of olive oil chemical composition has proven that this composition varies according to pedoclimatic conditions, while non‐targeted methods can be proposed in geographical traceability for their ability to analyze the chemical profile of samples. However, it was deemed necessary to conduct a study through a collaborative work initiative. Thus, this study provides a strict evaluation of Raman spectroscopy through a defined strategy for evaluating non‐targeted methods for geographical identification.
European Commission
European Journal of Lipid Science and Technology 121
2019
1900035