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First-order discrimination of methanolic extracts from plums according to harvesting date using fluorescence spectra. Quantification of polyphenols

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dc.contributor.authorCabrera Bañegil, Manuel
dc.contributor.authorLavado Rodas, Nieves
dc.contributor.authorMuñoz de la Peña, Arsenio
dc.contributor.authorDurán Merás, Isabel
dc.contributor.authorMonago Maraña, Olga
dc.date.accessioned2024-05-20T11:18:02Z
dc.date.available2024-05-20T11:18:02Z
dc.date.issued2021-10
dc.description.abstractFluorescence spectroscopy in combination with chemometric analysis was applied to discriminate between Japanese Angeleno variety of plums, according to the date of harvesting. Emission spectra (obtained from 280 to 500 nm, and from 345 to 500 nm, respectively) of methanolic extracts of plums at two excitation wavelengths (280 and 330 nm, respectively) were obtained. The fluorescence spectral data were firstly processed by Principal Component Analysis (PCA), as an exploratory study, to extract relevant information from the spectral data, and revealed differentiation between plum samples based in the harvested time. In addition, Partial Least-Squares-Discriminant-Analysis (PLS-DA) was used for the development of the classification models, allowing 100% accuracy to differentiate between the date of harvesting, independently that pulp or skin plum extracts were analyzed. Spectral patterns of plums showed significant differences during maturation period, with a special emphasis between the months of May and September. In addition, calibration models were obtained for different individual polyphenols with partial least-squares (PLS) regression, obtaining the best results for epicatechin and neochlorogenic acid determination.en
dc.description.versionversión final
dc.identifier.doihttps://doi.org/10.1016/j.microc.2021.106533
dc.identifier.issn0026-265X eISSN 1095-9149
dc.identifier.urihttps://hdl.handle.net/20.500.14468/11584
dc.journal.issue8
dc.journal.titleMicrochemical Journal
dc.journal.volume169
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.keywordsFluorescence
dc.subject.keywordsDiscriminant analysis
dc.subject.keywordsPCA
dc.subject.keywordsPLS-DAPLS
dc.subject.keywordsPlums
dc.subject.keywordsPolyphenols
dc.titleFirst-order discrimination of methanolic extracts from plums according to harvesting date using fluorescence spectra. Quantification of polyphenolses
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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