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Electronic tongue: a versatile tool for mineral and fruit-flavored waters recognition

2016Journal article Open access
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dc.contributor.authorDias, L.G.
dc.contributor.authorAlberto, Zelda Manuel Menezes
dc.contributor.authorVeloso, Ana C.A.
dc.contributor.authorPeres, António M.
dc.date.accessioned2017-03-06T11:54:33Z
dc.date.available2017-03-06T11:54:33Z
dc.date.issued2016
dc.description.abstractNatural mineral waters (still), effervescent natural mineral waters (sparkling) and aromatized waters with fruit-flavors (still or sparkling) are an emerging market. In this work, the capability of a potentiometric electronic tongue, comprised with lipid polymeric membranes, to quantitatively estimate routinely quality physicochemical parameters (pH and conductivity) as well as to qualitatively classify water samples according to the type of water was evaluated. The study showed that a linear discriminant model, based on 21 sensors selected by the simulated annealing algorithm, could correctly classify 100 % of the water samples (leave-one out cross-validation). This potential was further demonstrated by applying a repeated K-fold cross-validation (guaranteeing that at least 15 % of independent samples were only used for internal-validation) for which 96 % of correct classifications were attained. The satisfactory recognition performance of the E-tongue could be attributed to the pH, conductivity, sugars and organic acids contents of the studied waters, which turned out in significant differences of sweetness perception indexes and total acid flavor. Moreover, the E-tongue combined with multivariate linear regression models, based on sub-sets of sensors selected by the simulated annealing algorithm, could accurately estimate water’s pH (25 sensors: R2 equal to 0.99 and 0.97 for leave-one-out or repeated K-folds cross-validation) and conductivity (23 sensors: R2 equal to 0.997 and 0.99 for leave-one-out or repeated K-folds cross-validation). So, the overall satisfactory results achieved, allow envisaging a potential future application of electronic tongue devices for bottled water analysis and classification.pt_PT
dc.description.sponsorshipFundação para a Cieˆncia e a Tecnologia (FCT) and the European Community fund FEDER, under the Program PT2020 (Project UID/EQU/50020/2013) and under the strategic funding of UID/BIO/04469/2013 unit.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDias, L.G.; Alberto, Zelda; Veloso, Ana C. A.; Peres, António M. (2016). Electronic tongue: a versatile tool for mineral and fruit-flavored waters recognition. Journal of Food Measurement and Characterization. ISSN 2193-4126. 10, p. 264–273pt_PT
dc.identifier.doi10.1007/s11694-015-9303-ypt_PT
dc.identifier.eissn2193-4134
dc.identifier.issn2193-4126
dc.identifier.urihttp://hdl.handle.net/10198/14086
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Verlagpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNatural mineral waterspt_PT
dc.subjectFruit-flavored waterspt_PT
dc.subjectFruit-flavored waterspt_PT
dc.subjectWater quality parameterspt_PT
dc.subjectElectronic tonguept_PT
dc.subjectDiscriminant analysispt_PT
dc.titleElectronic tongue: a versatile tool for mineral and fruit-flavored waters recognitionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEQU%2F50020%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FBIO%2F04469%2F2013/PT
oaire.citation.endPage273pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage264pt_PT
oaire.citation.titleJournal of Food Measurement and Characterizationpt_PT
oaire.citation.volume10pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameDias
person.familyNamePeres
person.givenNameLuís G.
person.givenNameAntónio M.
person.identifier107333
person.identifier.ciencia-id2F11-9092-FAAF
person.identifier.ciencia-idCF16-5443-F420
person.identifier.orcid0000-0002-1210-4259
person.identifier.orcid0000-0001-6595-9165
person.identifier.ridI-8470-2012
person.identifier.scopus-author-id23569169900
person.identifier.scopus-author-id7102331969
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication7d93be47-8dc4-4413-9304-5b978773d3bb
relation.isAuthorOfPublication.latestForDiscovery7d93be47-8dc4-4413-9304-5b978773d3bb
relation.isProjectOfPublication66ec3fc3-043e-4147-a64b-3d87442cc076
relation.isProjectOfPublication774297b8-449c-4471-8bbb-0cfe1f4c8275
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