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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/39534
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dc.creatorBruno Gonçalves Botelhopt_BR
dc.creatorLeandro Soares de Oliveirapt_BR
dc.creatorAdriana Silva Francapt_BR
dc.date.accessioned2022-02-21T19:56:33Z-
dc.date.available2022-02-21T19:56:33Z-
dc.date.issued2017-
dc.citation.volume77pt_BR
dc.citation.spage25pt_BR
dc.citation.epage31pt_BR
dc.identifier.doi10.1016/j.foodcont.2017.01.020pt_BR
dc.identifier.issn09567135pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/39534-
dc.description.resumoThe designation of origin of high-value agricultural and food products has become increasingly relevant for the producers, since it allows the consumers to relate the singular characteristics of their preferred product to its respective provenance. Thus, coffee producers are in pursuit of ways to certify their products according to their authenticity pertaining provenance. Fluorescence spectroscopy was applied in order to develop a geographical discrimination model of coffees produced in Minas Gerais State, Brazil. PARAFAC, NPLS-DA and UPLS-DA were used in order to discriminate samples produced in four major production areas in Minas Gerais, namely Cerrado Mineiro (CM), Matas de Minas (MM), Norte de Minas (NM) e Sul de Minas (SM). The UPLS-DA presented the best results, with f-scores for CM and SM higher than 0.8, for both training and test sets, which indicates good classification. MM model presented a good f-score for the training set (1.000), but a poor result was obtained for the test set (0.250), mainly due to false positive samples. NM models presented an intermediary result, with a f-score of 0.913 for training set and 0.625 for test set. The proposed method requires a simple sample pre-treatment, it is fast and can be used for the determination of the geographical origin of coffees produced in Minas Gerais State.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA MECÂNICApt_BR
dc.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOSpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofFood Controlpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectFluorescence spectroscopypt_BR
dc.subjectUPLS-DApt_BR
dc.subjectPARAFACpt_BR
dc.subjectCoffeept_BR
dc.subjectNPLS-DApt_BR
dc.subjectGeographical originpt_BR
dc.subject.otherTecnologia de alimentospt_BR
dc.subject.otherCafépt_BR
dc.titleFluorescence spectroscopy as tool for the geographical discrimination of coffees produced in different regions of Minas Gerais State in Brazilpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0956713517300300?via%3Dihubpt_BR
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