Antimicrobial potential of linear low-density polyethylene food packaging with Ag nanoparticles in different carriers (Silica and Hydroxyapatite)

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorda Costa Brito, Sabrina-
Autor(es): dc.creatorPereira, Vinicius Alex Cano-
Autor(es): dc.creatorPrado, Ana Carolina Figueiredo-
Autor(es): dc.creatorTobias, Thais Juliana-
Autor(es): dc.creatorParis, Elaine Cristina-
Autor(es): dc.creatorFerreira, Marcos David-
Data de aceite: dc.date.accessioned2025-08-21T22:36:03Z-
Data de disponibilização: dc.date.available2025-08-21T22:36:03Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.mimet.2023.106873-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305277-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305277-
Descrição: dc.descriptionSilver nanoparticles incorporation into polymeric packaging aims to prevent microbiological contamination in food products, thus ensuring superior food safety and preservation. In this context, this study aimed to verify the antimicrobial efficacy of linear low-density polyethylene (LLDPE) films incorporated with silver nanoparticles (AgNPs) dispersed in silica (SiO2) and hydroxyapatite (HAP) carriers at different concentrations. AgNPs + carriers polymer films were characterized at 0.2, 0.4, and 0.6% concentrations using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission gun-scanning electron microscope (FEG-SEM), thermogravimetric analyzer (TGA), differential scanning calorimetry (DSC), and migration in acidic and non-acidic simulants. Antimicrobial action was investigated on Gram-positive Staphylococcus aureus, Gram-negative Escherichia coli, and the Penicillium expansum and Fusarium solani fungi with antimicrobial activity by direct contact test and bacterial imaging by scanning electron microscopy. AgNPs addition to the LLDPE matrix did not interfere with the films' chemical and thermal properties and presented no significant migration to the external medium. For antimicrobial action, silver nanoparticles showed, in most concentrations, an inhibition percentage higher than 90% on all microorganisms studied, regardless of the carrier. However, a greater inhibitory action on S. aureus and between carriers was found, making hydroxyapatite more effective. The results indicated that nanostructured films with AgNPs + hydroxyapatite showed more promising antimicrobial action on microorganisms than AgNPs + silica, making hydroxyapatite with silver nanoparticle potentially useful in food packaging, improving safety and maintaining quality.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária-
Descrição: dc.descriptionPostgraduate Program in Food Science and Engineering São Paulo State University “Julio de Mesquita Filho”, Rod. Araraquara Jaú, Km 01, SP-
Descrição: dc.descriptionEmbrapa Instrumentação, Rua XV de Novembro, 1452, SP-
Descrição: dc.descriptionBiotechnology Graduate Program Federal University of São Carlos, Rod. Washington Luís, Km 235 – C. P.676, SP-
Descrição: dc.descriptionPostgraduate Program in Materials Science and Engineering Federal University of São Carlos, Rod. Washington Luís, Km 235 – C. P.676, SP-
Descrição: dc.descriptionChemistry Graduate Program University of Sao Paulo, Av. Trabalhador São-carlense, 400, SP-
Descrição: dc.descriptionPostgraduate Program in Chemistry Federal University of São Carlos, Rod. Washington Luís, Km 235 – C. P.676, SP-
Descrição: dc.descriptionPostgraduate Program in Food Science and Engineering São Paulo State University “Julio de Mesquita Filho”, Rod. Araraquara Jaú, Km 01, SP-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária: 13.16.04.041.00.00-
Idioma: dc.languageen-
Relação: dc.relationJournal of Microbiological Methods-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectActive food packaging-
Palavras-chave: dc.subjectAntimicrobial-
Palavras-chave: dc.subjectInorganic carrier-
Palavras-chave: dc.subjectNanotechnology-
Palavras-chave: dc.subjectPolymer films-
Palavras-chave: dc.subjectSilver nanoparticles-
Título: dc.titleAntimicrobial potential of linear low-density polyethylene food packaging with Ag nanoparticles in different carriers (Silica and Hydroxyapatite)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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