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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria Tropical. Para informações adicionais entre em contato com cnpat.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Instrumentação. |
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Data corrente: |
30/11/2022 |
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Data da última atualização: |
22/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOIANA, M. L.; MATTOS, A. L. A.; AZEREDO, H. M. C. de; ROSA, M. de F. |
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Afiliação: |
ADRIANO LINCOLN ALBUQUERQUE MATTOS, CNPAT; HENRIETTE MONTEIRO C DE AZEREDO, CNPDIA; MORSYLEIDE DE FREITAS ROSA, CNPAT. |
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Título: |
Influence of dielectric barrier discharge cold plasma treatment on starch, gelatin, and bacterial cellulose biodegradable polymeric films. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Polymers, v. 14, a5215, 2022. |
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Páginas: |
16 p. |
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DOI: |
10.3390/polym14235215 |
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Idioma: |
Inglês |
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Conteúdo: |
The environmental damage caused by plastic packaging and the need to reduce pollution requires actions to substitute plastic materials for more sustainable and biodegradable materials. Starch, gelatin, and bacterial cellulose films are three potential biodegradable polymeric films for use in packaging. However, these materials need improvements in their physical, chemical, and mechanical properties to be used in packaging. In this work, these films were treated with cold plasma to evaluate the effects of treatment conditions on several physical, chemical, and mechanical properties. The dielectric barrier discharge plasma technology was applied with varying treatment
times (0 to 20 min) and excitation frequencies (50 to 900 Hz) at 20 kV. The optimal excitation frequency for starch films (50 Hz) was different from the optimal frequency for gelatin and bacterial cellulose films (900 Hz), indicating a high dependency on the treatment in this variable that is often neglected. Plasma treatment improved the hydrophobicity, surface morphology, water resistance, and mechanical properties of all three films, with the advantage of not recurring to chemical or biological additives. |
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Palavras-Chave: |
Bacterial cellulose; Biopolymer. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01831naa a2200205 a 4500
001 2149028
005 2024-01-22
008 2022 bl uuuu u00u1 u #d
024 7 $a10.3390/polym14235215$2DOI
100 1 $aGOIANA, M. L.
245 $aInfluence of dielectric barrier discharge cold plasma treatment on starch, gelatin, and bacterial cellulose biodegradable polymeric films.$h[electronic resource]
260 $c2022
300 $a16 p.
520 $aThe environmental damage caused by plastic packaging and the need to reduce pollution requires actions to substitute plastic materials for more sustainable and biodegradable materials. Starch, gelatin, and bacterial cellulose films are three potential biodegradable polymeric films for use in packaging. However, these materials need improvements in their physical, chemical, and mechanical properties to be used in packaging. In this work, these films were treated with cold plasma to evaluate the effects of treatment conditions on several physical, chemical, and mechanical properties. The dielectric barrier discharge plasma technology was applied with varying treatment times (0 to 20 min) and excitation frequencies (50 to 900 Hz) at 20 kV. The optimal excitation frequency for starch films (50 Hz) was different from the optimal frequency for gelatin and bacterial cellulose films (900 Hz), indicating a high dependency on the treatment in this variable that is often neglected. Plasma treatment improved the hydrophobicity, surface morphology, water resistance, and mechanical properties of all three films, with the advantage of not recurring to chemical or biological additives.
653 $aBacterial cellulose
653 $aBiopolymer
700 1 $aMATTOS, A. L. A.
700 1 $aAZEREDO, H. M. C. de
700 1 $aROSA, M. de F.
773 $tPolymers$gv. 14, a5215, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| 2. |  | MORAES, M. S.; ROCHA, R. B.; TEIXEIRA, A. L.; ESPINDULA, M. C.; SILVA, C. A.; LUNZ, A. M. P. Adaptability and stability of Coffea canephora Pierre ex Froehner genotypes in the Western Amazon. Ciência Rural, v. 50, n. 1, e20190087, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Acre; Embrapa Rondônia. |
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| 3. | | PAPA, D. de A.; ALMEIDA, D. R. A. de; SILVA, C. A.; FIGUEIREDO, E. O.; STARK, S. C.; VALBUENA, R.; RODRIGUEZ, L. C. E.; OLIVEIRA, M. V. N. d'. Evaluating tropical forest classification and field sampling stratification from lidar to reduce effort and enable landscape monitoring. Forest Ecology and Management, v. 457, 1176342019, Feb. 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 4. | | OLIVEIRA, M. V. N. d'; FIGUEIREDO, E. O.; ALMEIDA, D. R. A. de; OLIVEIRA, L. C. de; SILVA, C. A.; NELSON, B. W.; CUNHA, R. M. da; PAPA, D. de A.; STARK, S. C.; VALBUENA, R. Impacts of selective logging on Amazon forest canopy structure and biomass with a LiDAR and photogrammetric survey sequence. Forest Ecology and Management, v. 500, 119648, Nov. 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 5. | | OLIVEIRA, M. V. N. d'; BROADBENT, E. N.; OLIVEIRA, L. C. de; ALMEIDA, D. R. A.; PAPA, D. de A.; FERREIRA, M. E.; ZAMBRANO, A. M. A.; SILVA, C. A.; AVINO, F. S.; PRATA, G. A.; MELLO, R. A.; FIGUEIREDO, E. O.; JORGE, L. A. de C.; JUNIOR, L.; ALBUQUERQUE, R. W.; BRANCALION, P. H. S.; WILKINSON, B.; COSTA, M. O. da. Aboveground biomass estimation in Amazonian Tropical Forests: a comparison of aircraft- and GatorEye UAV- borne LiDAR data in the Chico Mendes Extractive Reserve in Acre, Brazil. Remote Sensing, v. 12, n. 11, 1754, May 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Acre; Embrapa Instrumentação. |
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| 6. | | ALMEIDA, D. R. A. de; ZAMBRANO, A. M. A.; BROADBENT, E. N.; WENDT, A. L.; FOSTER, P.; WILKINSON, B. E.; SALK, C.; PAPA, D. de A.; STARK, S. C.; VALBUENA, R.; GORGENS, E. B.; SILVA, C. A.; BRANCALION, P. H. S.; FAGAN, M.; MELI, P.; CHAZDON, R. Detecting successional changes in tropical forest structure using GatorEye drone-borne lidar. Biotropica, v. 52, n. 6, p. 1155-1167, Nov. 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| 7. | | ALMEIDA, D. R. A. de; BROADBENT, E. N.; FERREIRA, M. P.; MELI, P.; ZAMBRANO, A. M. A.; GORGENS, E. B.; RESENDE, A. F.; ALMEIDA, C. T. de; AMARAL, C. R. do; CORTE, A. P. D.; SILVA, C. A.; ROMANELLI, J. P.; PRATA, G. A.; PAPA, D. de A.; STARK, S. C.; VALBUENA, R.; NELSON, B. W.; GUILLEMOT, J.; FÉRET, J. B.; CHAZDON, R.; BRANCALION, P. H. S. Monitoring restored tropical forest diversity and structure through UAV-borne hyperspectral and lidar fusion. Remote Sensing of Environment, v. 264, 112582, Oct. 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| Registros recuperados : 7 | |
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