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Title: | Targeted UHPLC-HRMS (Orbitrap) polyphenolic and capsaicinoid profiling for the chemometric characterization and classification of paprika with protected designation of origin (PDO) attributes |
Author: | Barbosa, Sergi Saurina, Javier Puignou i Garcia, Lluís Núñez Burcio, Oscar |
Keywords: | Pebrots Quimiometria Polifenols Espectrometria de masses Peppers Chemometrics Polyphenols Mass spectrometry |
Issue Date: | 1-Apr-2020 |
Publisher: | MDPI |
Abstract: | Society's interest in the quality of food products with certain attributes has increased, the attribute of a Protected Designation of Origin (PDO) being an effective tool to guarantee the quality and geographical origin of a given food product. In Spain, two paprika production areas with PDO (La Vera and Murcia) are recognized. In the present work, targeted UHPLC-HRMS polyphenolic and capsaicinoid profiling through the TraceFinderTM screening software, using homemade accurate mass databases, was proposed as a source of chemical descriptors, to address the characterization, classification, and authentication of paprika. A total of 126 paprika samples from different production regions¿Spain (La Vera PDO and Murcia PDO) and the Czech Republic, each including different flavor varieties, were analyzed. UHPLC-HRMS polyphenolic profiles showed to be good chemical descriptors to achieve paprika classification and authentication, based on the production region, through principal component analysis and partial least squares regression-discriminant analysis, with classification rates of 82%, 86%, and 100% for La Vera PDO, Murcia PDO, and the Czech Republic, respectively. In addition, a perfect classification was also accomplished among the flavor varieties for the Murcia PDO and Czech Republic samples. By employing the UHPLC-HRMS polyphenolic and capsaicinoid profiles as chemical descriptors, acceptable discrimination among La Vera PDO flavor varieties was also achieved. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/molecules25071623 |
It is part of: | Molecules, 2020, vol. 25, num. 7, p. 1623 |
URI: | http://hdl.handle.net/2445/158150 |
Related resource: | https://doi.org/10.3390/molecules25071623 |
ISSN: | 1420-3049 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
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