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Untargeted classification for paprika powder authentication using visible – Near infrared spectroscopy (VIS-NIRS)

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dc.contributor.authorEskildsen, Carl Emil
dc.contributor.authorGaleano Díaz, Teresa
dc.contributor.authorMuñoz de la Peña, Arsenio
dc.contributor.authorWold, Jens Petter
dc.contributor.authorMonago Maraña, Olga
dc.date.accessioned2024-05-20T11:17:41Z
dc.date.available2024-05-20T11:17:41Z
dc.date.issued2021-03
dc.description.abstractThis paper describes a non-destructive screening method for authentication of paprika belonging to the Spanish Protected Designation of Origin (PDO) “Pimentón de La Vera”. Different multivariate classification models were developed in order to differentiate PDO and non-PDO samples, using visible-near infrared spectra as fingerprint for each paprika sample. Sample treatment was not required. Principal component analysis (PCA) was applied in different spectral ranges: 400–2500, 400–800 and 800–2500 nm. In all spectral ranges, PCA was largely able to differentiate PDO from non-PDO samples. Partial least-squares - discriminant analysis (PLS-DA), PCA-linear discriminant analysis (LDA) and PCA-quadratic discriminant analysis (QDA) were used as classification methods in the different spectral ranges. All methods were able to differentiate PDO from non-PDO samples, with error rates (ER) lower than 0.15. The best models were those obtained with PLS-DA in the NIR range (800–2500 nm), showing ERs lower than 0.07 and error indexes (IERROR) (false positives) lower than 0.05.en
dc.description.versionversión final
dc.identifier.doihttps://doi.org/10.1016/j.foodcont.2020.107564
dc.identifier.issn0956-7135
dc.identifier.urihttps://hdl.handle.net/20.500.14468/11558
dc.journal.issue8
dc.journal.titleFood Control
dc.journal.volume121
dc.language.isoen
dc.publisherElsevier
dc.relation.centerFacultad de Ciencias
dc.relation.departmentCiencias Analíticas
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subject.keywordsProtected designation of origin (PDO)
dc.subject.keywordsPaprika
dc.subject.keywordsAuthentication
dc.subject.keywordsVisible-near infrared spectroscopy (Vis-NIRS)
dc.subject.keywordsMultivariate analysis
dc.subject.keywordsU-PLS/RBL
dc.titleUntargeted classification for paprika powder authentication using visible – Near infrared spectroscopy (VIS-NIRS)es
dc.typejournal articleen
dc.typeartículoes
dspace.entity.typePublication
relation.isAuthorOfPublicationee9ceafc-e763-4814-87ae-e2bb2b43d660
relation.isAuthorOfPublication.latestForDiscoveryee9ceafc-e763-4814-87ae-e2bb2b43d660
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