Detection and quantification of adulterants in honey by LIBS

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorNespeca, Maurílio Gustavo [UNESP]-
Autor(es): dc.creatorVieira, Alan Lima [UNESP]-
Autor(es): dc.creatorJúnior, Dário Santos-
Autor(es): dc.creatorNeto, José Anchieta Gomes [UNESP]-
Autor(es): dc.creatorFerreira, Edilene Cristina [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:28:19Z-
Data de disponibilização: dc.date.available2022-02-22T00:28:19Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.foodchem.2019.125886-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199785-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199785-
Descrição: dc.descriptionThe present work proposes methods for detection and quantification of honey adulterants using laser-induced breakdown spectroscopy (LIBS). The sample set consisted of 6 pure honey from different botanical sources, 2 sweetener syrups and 228 fortified samples. The spectra acquired using a spark discharge coupled to the LIBS system were used for the development of the PLS-DA (classification) and PLS (calibration) models. Several data preprocessing and variable selection methods were evaluated to obtain the best fit. The detection of adulterants was performed with 100% of accuracy. The quantification of adulterants was possible through a PLS model with the variables selected by iPLS. The PLS model was validated with external samples and presented good accuracy, selectivity, sensitivity, and linearity. The proposed methods highlighted the potential of the LIBS technique for honey authenticity certification, providing fast, simple, and clean determinations since no sample pretreatment was required.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionAnalytical Chemistry Department Institute of Chemistry São Paulo State University – UNESP, Prof. Francisco Degni 55-
Descrição: dc.descriptionDepartment of Chemistry Federal University of São Paulo – UNIFESP, R. São Nicolau 210-
Descrição: dc.descriptionAnalytical Chemistry Department Institute of Chemistry São Paulo State University – UNESP, Prof. Francisco Degni 55-
Descrição: dc.descriptionCNPq: 141977/2016-7-
Descrição: dc.descriptionCNPq: 308200/2018-7-
Idioma: dc.languageen-
Relação: dc.relationFood Chemistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdulteration-
Palavras-chave: dc.subjectHoney-
Palavras-chave: dc.subjectLaser-induced breakdown spectroscopy-
Palavras-chave: dc.subjectMultivariate analysis-
Palavras-chave: dc.subjectMultivariate filters-
Palavras-chave: dc.subjectSpark discharge-
Palavras-chave: dc.subjectVariable selection-
Título: dc.titleDetection and quantification of adulterants in honey by LIBS-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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