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Discrimination of olive oil by cultivar, geographical origin and quality using potentiometric electronic tongue fingerprints

2017Journal article Open access
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dc.contributor.authorSouayah, Fatma
dc.contributor.authorRodrigues, Nuno
dc.contributor.authorVeloso, Ana C.A.
dc.contributor.authorDias, L.G.
dc.contributor.authorPereira, J.A.
dc.contributor.authorOueslati, Souheib
dc.contributor.authorPeres, António M.
dc.date.accessioned2018-01-25T10:00:00Z
dc.date.accessioned2018-01-29T10:39:36Z
dc.date.available2018-01-25T10:00:00Z
dc.date.available2018-01-29T10:39:36Z
dc.date.issued2017
dc.description.abstractLegal regulations are set for protecting claims regarding olive oil geographical denomination. When meteorological or agroecological factors similarly affect different regions, the origin identification is a challenging task. This study demonstrated the use of a potentiometric electronic tongue coupled with linear discriminant analysis to discriminate the geographical origin of monovarietal Tunisian olive oil produced from local cv Chemlali (Kairouan, Sidi Bouzid or Sfax regions) and cv Sahli (Kairouan, Mahdia or Sousse regions). The potentiometric fingerprints of 12 or eight lipid sensors (for Chemlali and Sahli, respectively), selected using a simulated annealing meta-heuristic algorithm, allowed the correct prediction (repeated K-fold cross-validation) of the geographic production region with sensitivities of 92 ± 7% (Chemlali) and 97 ± 8% (Sahli). It was also confirmed the electronic tongue capability to classify Tunisian olive oil according to olive cultivar or quality grade. The results indicated the possible use of potentiometric fingerprints as a promising innovative strategy for olive oil analysis allowing assessing geographical origin, olive cultivar and quality grade, which are key factors determining olive oil price and consumers’ preference.pt_PT
dc.description.sponsorshipThis work was financially supported by Project POCI-01–0145-FEDER-006984–Associate Laboratory LSRE-LCM, Project UID/QUI/00616/2013—CQ-VR, and UID/AGR/00690/2013— CIMO all funded by FEDER—Fundo Europeu de Desenvolvimento Regional through COMPETE2020-Programa Operacional Competitividade e Internacionalização (POCI)—and by national funds through FCT—Fundação para a Ciência e a Tecnologia, Portugal. Strategic funding of UID/BIO/04469/2013 unit is also acknowledged. Nuno Rodrigues thanks FCT, POPH-QREN and FSE for the Ph.D. Grant (SFRH/ BD/104038/2014). Souheib Oueslati is also grateful for the support of the Tunisian Ministry of Agriculture.
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSouayah, Fatma; Rodrigues, Nuno; Veloso, Ana C.A.; Dias, L.G.; Pereira, J.A.; Oueslati, Souheib; Peres, António M. (2017). Discrimination of olive oil by cultivar, geographical origin and quality using potentiometric electronic tongue fingerprints. Journal of the American Oil Chemists' Society. ISSN 0003-021X. 94, p. 1417–1429
dc.identifier.doi10.1007/s11746-017-3051-6pt_PT
dc.identifier.issn0003-021X
dc.identifier.urihttp://hdl.handle.net/10198/15067
dc.language.isoeng
dc.peerreviewedyespt_PT
dc.relationPhysicochemical analysis
dc.relationCharacterization of wild and ancient olive trees for its valorization”
dc.subjectElectronic tongue
dc.subjectChemometrics
dc.subjectTunisian monovarietal olive oil
dc.subjectSensory analysis
dc.subjectGeographical origin classification
dc.titleDiscrimination of olive oil by cultivar, geographical origin and quality using potentiometric electronic tongue fingerprintsen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCharacterization of wild and ancient olive trees for its valorization”
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00616%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FBIO%2F04469%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F104038%2F2014/PT
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameRodrigues
person.familyNameDias
person.familyNamePereira
person.familyNamePeres
person.givenNameNuno
person.givenNameLuís G.
person.givenNameJosé Alberto
person.givenNameAntónio M.
person.identifier107333
person.identifier.ciencia-idF41D-B424-5F78
person.identifier.ciencia-id2F11-9092-FAAF
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.ciencia-idCF16-5443-F420
person.identifier.orcid0000-0002-9305-0976
person.identifier.orcid0000-0002-1210-4259
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-id55258560600
person.identifier.scopus-author-id23569169900
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id7102331969
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticlept_PT
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