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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/11/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MALAFATTI, J. O. D.; DOMINGUES, M. A.; MEIRELLES, M. R.; PERES, L. G. S.; BRESOLIN, J. D.; PARIS, E. C. |
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Afiliação: |
Department of Chemistry, Federal University of Sao Carlos; Department of Materials Engineering, Federal University of Sao Carlos; Institute of Chemistry, University of Sao Paulo; Department of Materials Engineering, Federal University of Sao Carlos; JOANA DIAS BRESOLIN, CNPDIA; ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Antifungal and ultraviolet-visible barrier properties in starch films reinforced with CuO nanoparticles. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Applied Polymer Science, v.140, e54290, 2023. |
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Páginas: |
14 p. |
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DOI: |
.https://doi.org/10.1002/app.54290 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Starch materials are subject to loss of initial characteristics due to the retrogradation degenerative effect, high hygroscopicity, and favoring the growth of the microorganisms, which reduces the shelf life of packaging. In this sense, the insertion of nanoparticulated CuO was evaluated for the best performance. CuO is a semiconductor that can improve optical, mechanical, and antimicrobial properties, enabling excellent promotion of starch films. The hot injection precipitation method was used to obtain CuO nanoparticles in the nanometric scale rapidly. The films were carried out from the starch homogenization in water and urea under temperature, followed by thermopressing at 120C. As a result, the 1% CuO (w w1 ) increased tensile strength from 0.87 ± 0.40 to 1.92 ± 0.09 MPa. Furthermore, the films containing nanoparticles showed a barrier property against radiation in the ultraviolet?visible spectrum, not observed for the micrometric scale. Such results were attributed to the superior opacity of the films generated by nanometric reinforcement. Concerning antimicrobial activity, the films containing CuO showed a fungistatic effect (33%) for the Alternaria alternata fungus, a microorganism very susceptible to carbohydrate-rich sources. Thus, the CuO-reinforced starch films improved physicochemical and biological properties, making them promissory candidates for commercial application. |
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Palavras-Chave: |
Antifungal; Copper oxide; Fertilizer; Optical. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158668/1/P-Antifungal-and-ultravioletvisible-barrier-properties-in.pdf
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Marc: |
LEADER 02175naa a2200253 a 4500
001 2158668
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
024 7 $a.https://doi.org/10.1002/app.54290$2DOI
100 1 $aMALAFATTI, J. O. D.
245 $aAntifungal and ultraviolet-visible barrier properties in starch films reinforced with CuO nanoparticles.$h[electronic resource]
260 $c2023
300 $a14 p.
520 $aAbstract Starch materials are subject to loss of initial characteristics due to the retrogradation degenerative effect, high hygroscopicity, and favoring the growth of the microorganisms, which reduces the shelf life of packaging. In this sense, the insertion of nanoparticulated CuO was evaluated for the best performance. CuO is a semiconductor that can improve optical, mechanical, and antimicrobial properties, enabling excellent promotion of starch films. The hot injection precipitation method was used to obtain CuO nanoparticles in the nanometric scale rapidly. The films were carried out from the starch homogenization in water and urea under temperature, followed by thermopressing at 120C. As a result, the 1% CuO (w w1 ) increased tensile strength from 0.87 ± 0.40 to 1.92 ± 0.09 MPa. Furthermore, the films containing nanoparticles showed a barrier property against radiation in the ultraviolet?visible spectrum, not observed for the micrometric scale. Such results were attributed to the superior opacity of the films generated by nanometric reinforcement. Concerning antimicrobial activity, the films containing CuO showed a fungistatic effect (33%) for the Alternaria alternata fungus, a microorganism very susceptible to carbohydrate-rich sources. Thus, the CuO-reinforced starch films improved physicochemical and biological properties, making them promissory candidates for commercial application.
653 $aAntifungal
653 $aCopper oxide
653 $aFertilizer
653 $aOptical
700 1 $aDOMINGUES, M. A.
700 1 $aMEIRELLES, M. R.
700 1 $aPERES, L. G. S.
700 1 $aBRESOLIN, J. D.
700 1 $aPARIS, E. C.
773 $tJournal of Applied Polymer Science$gv.140, e54290, 2023.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
10/03/2008 |
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Data da última atualização: |
12/04/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PEREIRA JÚNIOR, J. E.; JESUS, E. M. de; PADILHA, D. R. C.; GARCIA, H. C.; ASSIS, T. A. C. de; REIS, V. D. A. dos; SALIS, S. M. |
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Afiliação: |
José Edmo Pereira Júnior, UFMS; Edileuza Medeiros de Jesus, Uniderp; Daly Roxana Castro Padilha, UFMS; Helena Céspedes Garcia, UFMS; Thaisa Aparecida Campagna de Assis, UFMS; Vanderlei Doniseti Acassio dos Reis, Embrapa Pantanal; Suzana Maria Salis, Embrapa Pantanal. |
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Título: |
Calendário apícola preliminar para a região da Fazenda Band'Alta, Ladário, MS. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PANTANAL, 1.; SEMANA DE BIOLOGIA, 7., 2007, Corumbá. Resumos...Corumbá: Embrapa Pantanal, 2007. (Embrapa Pantanal. Documentos, 89). |
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Páginas: |
1 p. |
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Idioma: |
Português |
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Palavras-Chave: |
Calendário apícola. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00735naa a2200205 a 4500
001 1793262
005 2019-04-12
008 2007 bl --- 0-- u #d
100 1 $aPEREIRA JÚNIOR, J. E.
245 $aCalendário apícola preliminar para a região da Fazenda Band'Alta, Ladário, MS.
260 $c2007
300 $a1 p.
653 $aCalendário apícola
700 1 $aJESUS, E. M. de
700 1 $aPADILHA, D. R. C.
700 1 $aGARCIA, H. C.
700 1 $aASSIS, T. A. C. de
700 1 $aREIS, V. D. A. dos
700 1 $aSALIS, S. M.
773 $tIn: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PANTANAL, 1.; SEMANA DE BIOLOGIA, 7., 2007, Corumbá. Resumos...Corumbá: Embrapa Pantanal, 2007. (Embrapa Pantanal. Documentos, 89).
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