Study of oils from the protected denomination of origin “Siurana” using excitation-emission fluorescence spectroscopy and three-way methods of analysis

Francesca Guimet; Joan Ferré; Ricard Boqué

doi:10.3989/gya.2005.v56.i4.95

Study of oils from the protected denomination of origin “Siurana” using excitation-emission fluorescence spectroscopy and three-way methods of analysis

Authors

Francesca Guimet Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University
Joan Ferré Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University
Ricard Boqué Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University

DOI:

https://doi.org/10.3989/gya.2005.v56.i4.95

Keywords:

Fluorescence spectroscopy, Partial least squares, P.D.O. "Siurana", Three-way methods of analysis, Virgin olive oil

Abstract

The production area of the Protected Denomination of Origin (P.D.O.) “Siurana” olive oils can be divided into two regions: “Montsant” and “Camp de Tarragona”, with different orography, soil characteristics and climatic conditions. As a result of these differences, the oils have variable stability. Here we show that excitation-emission fluorescence can detect these variations. Oils from the “Montsant” region (more stable) show more fluorescence intensity above 500 nm (due to vitamin E) and less below 500 nm (due to oxidation products) than those from the “Camp de Tarragona” region. Discrimination between oils from the two P.D.O. “Siurana” regions was achieved by means of discriminant unfold partial least squares regression, giving a percentage of correct classification of 94 % for “Siurana-Camp” and 100 % for “Siurana-Montsant” oils.

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Published

2005-12-31

How to Cite

Guimet F, Ferré J, Boqué R. Study of oils from the protected denomination of origin “Siurana” using excitation-emission fluorescence spectroscopy and three-way methods of analysis. Grasas aceites [Internet]. 2005Dec.31 [cited 2024Apr.19];56(4):292-7. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/95

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Issue

Vol. 56 No. 4 (2005)

Section

Research

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