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Potential use of the ATR-FTIR spectroscopy as an almond cultivar recognition tool: impact of sample and spectral pre-treatments

2025Journal article Embargoed access
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datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorLamas, Sandra
dc.contributor.authorRodrigues, Nuno
dc.contributor.authorSantamaria-Echart, Arantzazu
dc.contributor.authorPalu, Igor
dc.contributor.authorManhique, Jocyla
dc.contributor.authorHerrero, Baudilio
dc.contributor.authorLópez-Cortés, Isabel
dc.contributor.authorPereira, José Alberto
dc.contributor.authorPeres, António M.
dc.date.accessioned2025-05-29T15:42:02Z
dc.date.available2025-05-29T15:42:02Z
dc.date.issued2025
dc.description.abstractThree almond cultivars (Lauranne, Marinada, and Vairo) were studied, considering morphological parameters that showed statistical cultivar-dependence but not enabled accurate cultivar recognition. Alternatively, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was applied to whole endocarp, kernel, and ground almonds. Both transmittance spectra and respective derivatives (3400–2800 and 1900–600 cm of the three matrices were used to establish multivariate linear discriminant models, based on subsets of selected wavenumbers (6–33), allowing 90.5–99.7% of correct cultivar classification for repeated K-fold cross-validation. Ground almonds yielded the best results regardless of spectrum pre-treatment. While epicarp analysis offers less invasiveness, the use of raw transmittance spectra of ground almonds resulted into the most practical approach due to the need of fewer independent variables (less complex models), proving effective for cultivar identification via ATR-FTIR -chemometric tools. Overall, the findings point out that ATR-FTIR is a reliable tool for almond cultivar traceability.eng
dc.description.sponsorshipOpen access funding provided by FCT|FCCN (b-on).
dc.identifier.citationLamas, Sandra; Rodrigues, Nuno; Santamaria-Echart, Arantzazu; Palu, Igor; Manhique, Jocyla; Herrero, Baudilio; López-Cortés, Isabel; Pereira, José Alberto; Peres, António M. (2025). Potential use of the ATR-FTIR spectroscopy as an almond cultivar recognition tool: impact of sample and spectral pre-treatments. Journal of Food Measurement and Characterization. ISSN 2193-4126. 19:4, p. 2595-2610
dc.identifier.doi10.1007/s11694-025-03133-9
dc.identifier.eissn2193-4134
dc.identifier.issn2193-4126
dc.identifier.urihttp://hdl.handle.net/10198/34513
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.relation.ispartofJournal of Food Measurement and Characterization
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDry fruits
dc.subjectCultivar traceability
dc.subjectPrincipal Component Analysis
dc.subjectLinear Discriminant Analysis
dc.titlePotential use of the ATR-FTIR spectroscopy as an almond cultivar recognition tool: impact of sample and spectral pre-treatmentseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2610
oaire.citation.issue4
oaire.citation.startPage2595
oaire.citation.titleJournal of Food Measurement and Characterization
oaire.citation.volume19
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLamas
person.familyNameRodrigues
person.familyNameSantamaria-Echart
person.familyNameManhique
person.familyNamePereira
person.familyNamePeres
person.givenNameSandra
person.givenNameNuno
person.givenNameArantzazu
person.givenNameJocyla
person.givenNameJosé Alberto
person.givenNameAntónio M.
person.identifier107333
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person.identifier.orcid0000-0002-4334-1636
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person.identifier.orcid0000-0003-0107-7301
person.identifier.orcid0000-0002-2260-0600
person.identifier.orcid0000-0001-6595-9165
person.identifier.ridL-6798-2014
person.identifier.ridI-8470-2012
person.identifier.scopus-author-id57225883755
person.identifier.scopus-author-id55258560600
person.identifier.scopus-author-id56725697700
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id7102331969
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