| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria Tropical. Para informações adicionais entre em contato com cnpat.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Instrumentação. |
|
Data corrente: |
30/11/2022 |
|
Data da última atualização: |
22/01/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
GOIANA, M. L.; MATTOS, A. L. A.; AZEREDO, H. M. C. de; ROSA, M. de F. |
|
Afiliação: |
ADRIANO LINCOLN ALBUQUERQUE MATTOS, CNPAT; HENRIETTE MONTEIRO C DE AZEREDO, CNPDIA; MORSYLEIDE DE FREITAS ROSA, CNPAT. |
|
Título: |
Influence of dielectric barrier discharge cold plasma treatment on starch, gelatin, and bacterial cellulose biodegradable polymeric films. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Polymers, v. 14, a5215, 2022. |
|
Páginas: |
16 p. |
|
DOI: |
10.3390/polym14235215 |
|
Idioma: |
Inglês |
|
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. |
|
Palavras-Chave: |
Bacterial cellulose; Biopolymer. |
|
Categoria do assunto: |
-- |
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 7 | |
| 4. |  | WOLFF, T.; SANTOS, P. F. P. dos; PEREIRA, R. de C. A.; GUIMARÃES, E. F.; TINOCO, L. W.; VALENTE, L. M. M. Identificação em mistura de piperamidas em folhas, caule e raízes de Piper ottonoides por CG-EM e RMN 1D e 2D. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE QUÍMICA, 37., 2014, Natal. Resumos... Natal: SBQ, 2014. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
|    |
| 5. | | WOLFF, T.; SANTOS, P. F. P.; VALENTE, L. M. M.; MAGALHÃES, A.; TINOCO, L. W.; PEREIRA, R. de C. A.; GUIMARÃES, E. F. Piperamides from Piper ottonoides by NMR and GC-MS Based Mixture Analysis. Journal of the Brazilian Chemical Society, Campinas, v. 26, n. 11, p. 2321-2330, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
| |
| 6. | | PAIXÃO, D. DA; BARBOZA, R. S.; VALENTE, L. M. M.; SOUZA, M. O.; SIANI, A. C.; PEREIRA, R. de C. A.; GALLO, B.; BERRUETA, L. A. Polyphenol profile and quantitative assessment of the flavonoid kaempferitrin in wild and cultivated Brazilian Amazonian Uncaria guianensis (Rubiaceae). Journal of the Brazilian Chemical Society, v. 32, n. 8, p. 1670-1679, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
| |
| 7. | | MELLO, C. da S.; VALENTE, L. M. M.; WOLFF, T.; LIMA JUNIOR, R. S.; FIALHO, L. G.; MARINHO, C. F.; AZEREDO, E. L.; OLIVEIRA PINTO, L. M.; PEREIRA, R. de C. A.; SIANI, A. C.; KUBELKA, C. F. Decrease in Dengue virus-2 infection and reduction of cytokine/chemokine production by Uncaria guianensis in human hepatocyte cell line Huh-7. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 112, n. 6, p. 458-468, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
| |
| Registros recuperados : 7 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
