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A novel approach for honey pollen profile assessment using an electronic tongue and chemometric tools

2015Journal article Restricted access
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dc.contributor.authorDias, L.G.
dc.contributor.authorVeloso, Ana C.A.
dc.contributor.authorSousa, Mara E.B.C.
dc.contributor.authorEstevinho, Leticia M.
dc.contributor.authorMachado, Adélio A.M.
dc.contributor.authorPeres, António M.
dc.date.accessioned2017-03-03T10:58:48Z
dc.date.available2017-03-03T10:58:48Z
dc.date.issued2015
dc.description.abstractNowadays the main honey producing countries require accurate labeling of honey before commercialization, including floral classification. Traditionally, this classification is made by melissopalynology analysis, an accurate but time-consuming task requiring laborious sample pre-treatment and high-skilled technicians. In this work the potential use of a potentiometric electronic tongue for pollinic assessment is evaluated, using monofloral and polyfloral honeys. The results showed that after splitting honeys according to color (white, amber and dark), the novel methodology enabled quantifying the relative percentage of the main pollens (Castanea sp., Echium sp., Erica sp., Eucaliptus sp., Lavandula sp., Prunus sp., Rubus sp. and Trifolium sp.). Multiple linear regression models were established for each type of pollen, based on the best sensors' sub-sets selected using the simulated annealing algorithm. To minimize the overfitting risk, a repeated K-fold cross-validation procedure was implemented, ensuring that at least 10-20% of the honeys were used for internal validation. With this approach, a minimum average determination coefficient of 0.91 ± 0.15 was obtained. Also, the proposed technique enabled the correct classification of 92% and 100% of monofloral and polyfloral honeys, respectively. The quite satisfactory performance of the novel procedure for quantifying the relative pollen frequency may envisage its applicability for honey labeling and geographical origin identification. Nevertheless, this approach is not a full alternative to the traditional melissopalynologic analysis; it may be seen as a practical complementary tool for preliminary honey floral classification, leaving only problematic cases for pollinic evaluation.pt_PT
dc.description.sponsorshipFCT/MEC and FEDER under Programme PT2020 (Project UID/EQU/50020/2013) and under the strategic funding of UID/BIO/04469/2013 unitpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDias, L.G.; Veloso, Ana C.A.; Sousa, Mara E.B.C.; Estevinho, Leticia M.; Machado, Adélio; Peres, António M. (2015). A novel approach for honey pollen profile assessment using an electronic tongue and chemometric tools. Analytica Chimica Acta. ISSN 0003-2670. 900, p. 36-45
dc.identifier.doi10.1016/j.aca.2015.10.014pt_PT
dc.identifier.eissn1873-4324
dc.identifier.issn0003-2670
dc.identifier.urihttp://hdl.handle.net/10198/14078
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHoneypt_PT
dc.subjectPollenpt_PT
dc.subjectElectronicspt_PT
dc.titleA novel approach for honey pollen profile assessment using an electronic tongue and chemometric toolspt_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.endPage45pt_PT
oaire.citation.startPage36pt_PT
oaire.citation.titleAnalytica Chimica Actapt_PT
oaire.citation.volume900pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameDias
person.familyNameEstevinho
person.familyNamePeres
person.givenNameLuís G.
person.givenNameLetícia M.
person.givenNameAntónio M.
person.identifier107333
person.identifier.ciencia-id2F11-9092-FAAF
person.identifier.ciencia-idBA14-09D6-A406
person.identifier.ciencia-idCF16-5443-F420
person.identifier.orcid0000-0002-1210-4259
person.identifier.orcid0000-0002-9249-1948
person.identifier.orcid0000-0001-6595-9165
person.identifier.ridI-8470-2012
person.identifier.scopus-author-id23569169900
person.identifier.scopus-author-id6506577664
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.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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