Determination of 5-hydroxymethylfurfural using an electropolymerized molecularly imprinted polymer in combination with Salle

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorNational Institute of Chemistry-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of Belgrade-
Autor(es): dc.creatorFrancisco, Karen C.A.-
Autor(es): dc.creatorLobato, Alnilan-
Autor(es): dc.creatorTasić, Nikola-
Autor(es): dc.creatorCardoso, Arnaldo A.-
Autor(es): dc.creatorGonçalves, Luís M.-
Data de aceite: dc.date.accessioned2025-08-21T22:46:59Z-
Data de disponibilização: dc.date.available2025-08-21T22:46:59Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.talanta.2022.123723-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/241365-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/241365-
Descrição: dc.descriptionCoffee, a beverage with a complex chemical composition, is appreciated for the sensory experience of its taste and aroma. The compound 5-(hydroxymethyl)-2-furfural (HMF) is essential for sensory characterization of the beverage, and is also used in the traceability of its production. In this work, a procedure combining salting-out assisted liquid-liquid extraction (SALLE) and an electropolymerized molecularly imprinted polymer (e-MIP) was developed for the detection and quantification of HMF in coffee samples. The sample preparation step using SALLE employed a combination of acetonitrile and phosphate-buffered saline, in a proportion of 70:30 (ACN:PBS), with addition of 0.02 g of NaCl. The new sensor (e-MIP) was prepared by electropolymerization of p-aminobenzoic acid onto a glassy carbon electrode (GCE) using cyclic voltammetry (CV). Analytical determinations were performed by differential pulse voltammetry (DPV). The linear regression correlation coefficient (r2) for the response was 0.9986. The limits of detection and quantification were 0.372 mg L−1 and 1.240 mg L−1, respectively. The repeatability and reproducibility values obtained were 6 and 10%, respectively. The recoveries for three concentration levels were between 97 and 101%. Analyses of different coffee samples showed that the HMF concentrations varied from 261.0 ± 41.0 to 770.2 ± 55.9 mg kg−1 in powdered coffee samples, and from 1510 ± 50 to 4445 ± 278 mg kg−1 in instant coffee samples. The advantages of this procedure, compared to other methods described in the literature, are its simplicity, easy operation, good selectivity and sensitivity, low cost, and minimal use of organic solvents.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartamento de Química Analítica Instituto de Química Universidade Estadual Paulista (UNESP), Araraquara-
Descrição: dc.descriptionDepartment of Analytical Chemistry National Institute of Chemistry-
Descrição: dc.descriptionDepartamento de Química Fundamental Instituto de Química Universidade de São Paulo (USP), SP-
Descrição: dc.descriptionDepartment of Materials Science Institute of Multidisciplinary Research University of Belgrade-
Descrição: dc.descriptionDepartamento de Química Analítica Instituto de Química Universidade Estadual Paulista (UNESP), Araraquara-
Descrição: dc.descriptionFAPESP: 2018/13922–7-
Descrição: dc.descriptionFAPESP: 2018/14425–7-
Descrição: dc.descriptionFAPESP: 2019/11214–8-
Descrição: dc.descriptionCNPq: 309168/2020–1-
Idioma: dc.languageen-
Relação: dc.relationTalanta-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject5-(Hydroxymethyl)-2-furfural-
Palavras-chave: dc.subjectElectroanalysis-
Palavras-chave: dc.subjectElectropolymerization-
Palavras-chave: dc.subjectMolecular recognition-
Palavras-chave: dc.subjectSalting-out assisted liquid-liquid extraction-
Palavras-chave: dc.subjectSample preparation-
Título: dc.titleDetermination of 5-hydroxymethylfurfural using an electropolymerized molecularly imprinted polymer in combination with Salle-
Tipo de arquivo: dc.typelivro digital-
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