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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Semiárido. |
Data corrente: |
28/05/1996 |
Data da última atualização: |
18/10/2022 |
Tipo da produção científica: |
Folder/Folheto/Cartilha |
Autoria: |
CARVALHO, J. H. de. |
Afiliação: |
JOSE HERCULANO DE CARVALHO, EMBRAPA-UEPAE de Teresina. |
Título: |
Relatório de atividades do projeto de avaliação de plantas xerófilas na região semi-árida do estado do Piauí - Convênio BNB/FUNDECI/EMBRAPA. |
Ano de publicação: |
1986 |
Fonte/Imprenta: |
Teresina: EMBRAPA-UEPAE de Teresina, 1986. |
Páginas: |
13p. |
Idioma: |
Português |
Conteúdo: |
Resultados obtidos; Algaroba com espinhos; Algaroba sem espinhos; Aroeira; Bordao-de-velho; Cajueiro; Faveira; Leucaena; Manicoba; Pau-fero; Sabia; Seriguela. |
Palavras-Chave: |
Algaroba com espinho; Algaroba sem espinho; Bordao-de-velho; Brasil; Cajueiro; Leucena; Natural resource; Pau-ferro; Piaui; Projeto; Seriguela. |
Thesagro: |
Aroeira; Botânica; Faveira; Maniçoba; Planta Xerófila; Recurso natural; Sabiá. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/50447/1/Fol-4573.pdf
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Marc: |
LEADER 01073nam a2200337 a 4500 001 1050447 005 2022-10-18 008 1986 bl uuuu u0uu1 u #d 100 1 $aCARVALHO, J. H. de 245 $aRelatório de atividades do projeto de avaliação de plantas xerófilas na região semi-árida do estado do Piauí - Convênio BNB/FUNDECI/EMBRAPA. 260 $aTeresina: EMBRAPA-UEPAE de Teresina$c1986 300 $a13p. 520 $aResultados obtidos; Algaroba com espinhos; Algaroba sem espinhos; Aroeira; Bordao-de-velho; Cajueiro; Faveira; Leucaena; Manicoba; Pau-fero; Sabia; Seriguela. 650 $aAroeira 650 $aBotânica 650 $aFaveira 650 $aManiçoba 650 $aPlanta Xerófila 650 $aRecurso natural 650 $aSabiá 653 $aAlgaroba com espinho 653 $aAlgaroba sem espinho 653 $aBordao-de-velho 653 $aBrasil 653 $aCajueiro 653 $aLeucena 653 $aNatural resource 653 $aPau-ferro 653 $aPiaui 653 $aProjeto 653 $aSeriguela
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Embrapa Meio-Norte (CPAMN) |
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Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
29/12/2022 |
Data da última atualização: |
22/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
REIS, C. A.; GUIMARÃES JÚNIOR, M.; MOREIRA, F. K. V.; MARCONCINI, J. M.; VAZ, L. E. V. S. B. |
Afiliação: |
JOSE MANOEL MARCONCINI, CNPDIA. |
Título: |
Synthesis and characterization of chitosan/montmorillonite nanocomposites for application as edible coating. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Food Science and Technology International, v. 29, n. 1, 2022. |
Páginas: |
25 - 39 |
ISSN: |
1082-0132 |
DOI: |
10.1177/10820132211057718 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Biopolymer; Nanoclay. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150487/1/P-Synthesis-and-characterization-of-chitosan.pdf
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Marc: |
LEADER 02169naa a2200229 a 4500 001 2150487 005 2024-01-22 008 2022 bl uuuu u00u1 u #d 022 $a1082-0132 024 7 $a10.1177/10820132211057718$2DOI 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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