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| Registros recuperados : 9 | |
| 1. |  | PROTÁSIO, T. de P.; BUFALINO, L.; GUIMARÃES JUNIOR, M.; TONOLI, G. H. D.; TRUGILHO, P. F. Técnicas multivariadas aplicadas à avaliação de resíduos lignocelulósicos para a produção de bioenergia. Ciência Florestal, Santa Maria, RS, v. 23, n. 4, p. 771-781, out./dez. 2013.| Biblioteca(s): Embrapa Florestas. |
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| 2. | | PROTÁSIO, T. de P.; TONOLI, G. H. D.; GUIMARÃES JUNIOR, M.; BUFALINO, L.; COUTO, A. M.; TRUGILHO, P. F. Correlações canônicas entre as caracteristicas químicas e energéticas de resíduos lignocelulósicos. Cerne, Lavras, v. 18, n. 3, p. 433-439, jul./set. 2012.| Biblioteca(s): Embrapa Florestas. |
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| 3. | | PROTÁSIO, T. de P.; BUFALINO, L.; TONOLI, G. H. D.; COUTO, A. M.; TRUGILHO, P. F.; GUIMARÃES JÚNIOR, M. Relação entre o poder calorífico superior e os componentes elementares e minerais da biomassa vegetal. Pesquisa Florestal Brasileira, Colombo, v. 31, n. 66, p. 113-122, abr./jun. 2011.| Biblioteca(s): Embrapa Florestas. |
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| 6. | | SILVA, L. E.; CLARO, P. I. C.; SANFELICE, R. C.; GUIMARÃES JÚNIOR, M.; OLIVEIRA, J. E.; UGUCIONI, J. C.; CORREA, D. S.; TONOLI, G. H. D. Cellulose nanofibrils modification with polyaniline aiming at enhancing electrical properties for application in flexible electronics. Cellulose Chemistry and Technology, v. 53, n. 7-8, 2019. 775 - 786| Biblioteca(s): Embrapa Instrumentação. |
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| 7. | | GUIMARÃES, B. M. R.; SCATOLINO, M. V.; MARTINS, M. A.; FERREIRA, S. R.; MENDES, L. M.; LIMA, J. T.; GUIMARÃES JUNIOR, M.; TONOLI, G. H. D. Bio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials. Environmental Science and Pollution Research, v. 29, 2022. 8665-8683| Biblioteca(s): Embrapa Instrumentação. |
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| 8. | | BUFALINO, L.; TONOLI, G. H. D.; COSTA, T. G.; PROTASIO, T. de P.; SENA NETO, A. R.; MARCONCINI, J. M.; GUIMARAES JUNIOR, M.; MENDES, L. M. Nanocellulose films from Amazon forest wood wastes: structural and thermal properties. Key engineering materials, [S. l.], v. 668, p. 110-117, 2016.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | FERREIRA, L. F.; FIGUEIREDO, L. P.; MARTINS, M. A.; LUVIZARO, L. B.; bLARA, B. R. B.; OLIVEIRA, C. R.; GUIMARÃES JUNIOR, M.; TONOLI, G. H. D.; DIAS, M. V. Active coatings of thermoplastic starch and chitosan with alpha-tocopherol/bentonite for special green coffee beans. International Journal of Biological Macromolecules, v. 170, 2021. 810 - 819| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 9 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
29/12/2022 |
|
Data da última atualização: |
22/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
REIS, C. A.; GUIMARÃES JÚNIOR, M.; MOREIRA, F. K. V.; MARCONCINI, J. M.; VAZ, L. E. V. S. B. |
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Afiliação: |
JOSE MANOEL MARCONCINI, CNPDIA. |
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Título: |
Synthesis and characterization of chitosan/montmorillonite nanocomposites for application as edible coating. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Food Science and Technology International, v. 29, n. 1, 2022. |
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Páginas: |
25 - 39 |
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ISSN: |
1082-0132 |
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DOI: |
10.1177/10820132211057718 |
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Idioma: |
Inglês |
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Conteúdo: |
Edible coating can improve fruits shelf life and, consequently, reduce their waste. Chitosan, which presents a potential for chemical modifications and capacity to form films, can be an alternative for coating due to its biocompatibility, biodegradability, and antimicrobial properties. Chitosan film can be obtained through casting method presenting suitable mechanical properties, such as resistance to traction and elongation, ability to adhere to surfaces and selective permeability to gases, such as O2 and CO2. However, it is highly permeable to water vapor, which can limit its potential coating use. The properties of chitosan films can be improved through the formation of composites by inserting nanoclays as montmorillonite in the polymeric matrix. The objective of this study was to develop and characterize chitosan/montmorillonite nanocomposites for fruit coating aiming for future applications in the field of smart packaging. Nanocomposites were characterized by its microstructure, thermal, mechanical, and physicochemical properties. X-ray diffraction analysis indicated changes in crystallinity with the insertion of montmorillonite. Nanocomposites became more transparent and significantly reduced its water permeability rate with 0.5% w/w montmorillonite addition. Elastic rigidity and tensile strength of the films were improved.Chitosan/montmorillonite nanocomposites demonstrated the potential to improve the storage time ofWilliams pears. |
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Palavras-Chave: |
Biopolymer; Nanoclay. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150487/1/P-Synthesis-and-characterization-of-chitosan.pdf
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Marc: |
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022 $a1082-0132
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100 1 $aREIS, C. A.
245 $aSynthesis and characterization of chitosan/montmorillonite nanocomposites for application as edible coating.$h[electronic resource]
260 $c2022
300 $a25 - 39
520 $aEdible coating can improve fruits shelf life and, consequently, reduce their waste. Chitosan, which presents a potential for chemical modifications and capacity to form films, can be an alternative for coating due to its biocompatibility, biodegradability, and antimicrobial properties. Chitosan film can be obtained through casting method presenting suitable mechanical properties, such as resistance to traction and elongation, ability to adhere to surfaces and selective permeability to gases, such as O2 and CO2. However, it is highly permeable to water vapor, which can limit its potential coating use. The properties of chitosan films can be improved through the formation of composites by inserting nanoclays as montmorillonite in the polymeric matrix. The objective of this study was to develop and characterize chitosan/montmorillonite nanocomposites for fruit coating aiming for future applications in the field of smart packaging. Nanocomposites were characterized by its microstructure, thermal, mechanical, and physicochemical properties. X-ray diffraction analysis indicated changes in crystallinity with the insertion of montmorillonite. Nanocomposites became more transparent and significantly reduced its water permeability rate with 0.5% w/w montmorillonite addition. Elastic rigidity and tensile strength of the films were improved.Chitosan/montmorillonite nanocomposites demonstrated the potential to improve the storage time ofWilliams pears.
653 $aBiopolymer
653 $aNanoclay
700 1 $aGUIMARÃES JÚNIOR, M.
700 1 $aMOREIRA, F. K. V.
700 1 $aMARCONCINI, J. M.
700 1 $aVAZ, L. E. V. S. B.
773 $tFood Science and Technology International$gv. 29, n. 1, 2022.
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