Artículo
Usefulness of excitation-emission fluorescence spectralprint combined with chemometrics for authentication of PDO fortified wines
Autor/es | Ríos-Reina, Rocío
Pérez Bernal, Juan Luis Azcárate, Silvana M. Callejón Fernández, Raquel María |
Departamento | Universidad de Sevilla. Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal Universidad de Sevilla. Departamento de Química Analítica |
Fecha de publicación | 2024-04 |
Fecha de depósito | 2024-04-30 |
Resumen | Fortified wines covered by a Protected Designation of Origin (PDO) are high-quality products appreciated by consumers, whose diversity has increased in recent years, leading to an increased vulnerability to fraud. In this ... Fortified wines covered by a Protected Designation of Origin (PDO) are high-quality products appreciated by consumers, whose diversity has increased in recent years, leading to an increased vulnerability to fraud. In this work, for the first time, an excitation-emission fluorescence spectroscopy method combined with two chemometric approaches was developed for the characterization and authentication of PDO fortified wines. A visual assessment of fluorescence landscapes pointed out different trends. The excitation-emission matrix (EEM) was decomposed using Parallel Factor Analysis (PARAFAC) for the extraction of potential fluorophores, or unfolded, and then, the resulting matrices were subjected to Principal Component Analysis (PCA) and Partial Least Squares-Discriminant Analysis (PLS-DA). Both approaches were able to discriminate the wine type within each PDO, the PDO within a wine type, and the production process. The proposed analytical and chemometric tools could be used as an alternative control method for a rapid screening of Spanish PDO fortified wines. |
Agencias financiadoras | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) Junta de Andalucía |
Identificador del proyecto | FEDER 2014-2020 P-2021/1638
US-1380830 |
Ficheros | Tamaño | Formato | Ver | Descripción |
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MJ_rios-reina_2024_usefulness.pdf | 7.153Mb | [PDF] | Ver/ | |