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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
29/09/2022 |
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Data da última atualização: |
29/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MASCARENHAS, A. R. P.; SCATOLINO, M. V.; DIAS, M. C.; MARTINS, M. A.; MELO, R. R. de; MENDONDÇA, M. C.; TONOLI, G. H. D. |
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Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
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Título: |
Association of cellulose micro/nanofibrils and silicates for cardboard coating: Technological aspects for packaging. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Industrial Crops & Products, v. 188, e115667, 2022. |
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ISSN: |
0926-6690 |
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DOI: |
https://doi.org/10.1016/j.indcrop.2022.115667 |
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Idioma: |
Inglês |
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Conteúdo: |
Paper coating with cellulose micro/nanofibrils (MFC/NFC) can improve the performance of paper packaging. However, the process cost is high due to the significant energy consumption. The objective of this work was to produce MFC/NFC with pre-treated fibers using calcium silicate (Ca2O4Si) and magnesium silicate (MgO3Si) and evaluate their performance as a coating on cardboard. For the production of MFC/NFC, pre-treatments with Ca2O4Si and MgO3Si reduced energy consumption by ~30 %. The layers added to the cardboard reduced the water vapor permeability, mainly for the coating with 5 % MgO3Si (~98 g mm/kPa− 1 day m2 ). These characteristics indicate that coated paperboard is suitable for packaging bread, cheese, fruit, and vegetables. Suspensions with 5 % and 10 % Ca2O4Si increased the spread of PVAc, PVOH, and printing ink. The coatings reduced the strength and stiffness of the papers by ~50 % compared to the uncoated paper due to the wetting and drying cycles. On the other hand, there was an increase in ductility, which potentiated the paper?s formability. Optimizing application and drying techniques for MFC/NFC and silicate coating formulations can improve the mechanical and barrier properties of the coated papers for multilayer packag |
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Palavras-Chave: |
Barrier properties; Multilayer packaging; Surface energy. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02069naa a2200253 a 4500
001 2146977
005 2022-09-29
008 2022 bl uuuu u00u1 u #d
022 $a0926-6690
024 7 $ahttps://doi.org/10.1016/j.indcrop.2022.115667$2DOI
100 1 $aMASCARENHAS, A. R. P.
245 $aAssociation of cellulose micro/nanofibrils and silicates for cardboard coating$bTechnological aspects for packaging.$h[electronic resource]
260 $c2022
520 $aPaper coating with cellulose micro/nanofibrils (MFC/NFC) can improve the performance of paper packaging. However, the process cost is high due to the significant energy consumption. The objective of this work was to produce MFC/NFC with pre-treated fibers using calcium silicate (Ca2O4Si) and magnesium silicate (MgO3Si) and evaluate their performance as a coating on cardboard. For the production of MFC/NFC, pre-treatments with Ca2O4Si and MgO3Si reduced energy consumption by ~30 %. The layers added to the cardboard reduced the water vapor permeability, mainly for the coating with 5 % MgO3Si (~98 g mm/kPa− 1 day m2 ). These characteristics indicate that coated paperboard is suitable for packaging bread, cheese, fruit, and vegetables. Suspensions with 5 % and 10 % Ca2O4Si increased the spread of PVAc, PVOH, and printing ink. The coatings reduced the strength and stiffness of the papers by ~50 % compared to the uncoated paper due to the wetting and drying cycles. On the other hand, there was an increase in ductility, which potentiated the paper?s formability. Optimizing application and drying techniques for MFC/NFC and silicate coating formulations can improve the mechanical and barrier properties of the coated papers for multilayer packag
653 $aBarrier properties
653 $aMultilayer packaging
653 $aSurface energy
700 1 $aSCATOLINO, M. V.
700 1 $aDIAS, M. C.
700 1 $aMARTINS, M. A.
700 1 $aMELO, R. R. de
700 1 $aMENDONDÇA, M. C.
700 1 $aTONOLI, G. H. D.
773 $tIndustrial Crops & Products$gv. 188, e115667, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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URL |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
30/09/2013 |
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Data da última atualização: |
30/09/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
KAVAMURA, V.; SANTOS, S. N.; SILVA, J. L. da; PARMA, M. M.; AVILA, L. A.; VISCONTI, A.; ZUCCHI, T. D.; TAKETANI, R. G.; ANDREOTE, F. D.; MELO, I. S. de. |
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Afiliação: |
VANESSA NESSNER KAVAMURA, ESALQ-USP; SUIKINAI NOBRE SANTOS, ESALQ-USP; JOAO LUIZ DA SILVA, CNPMA; MARCIA MARIA PARMA, CNPMA; LUCIANA APARECIDA ÁVILA; ALEXANDRE VISCONTI, FCA-UNESP; TIAGO DOMINGUES ZUCCHI; RODRIGO GOUVÊA TAKETANI; FERNANDO DINI ANDREOTE, ESALQ-USP; ITAMAR SOARES DE MELO, CNPMA. |
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Título: |
Screening of Brazilian cacti rhizobacteria for plant growth promotion under drought. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Microbiological Research, Jena, v. 168, n. 4, p. 183-191, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Drought is one of the major problems worldwide. The search for new and efficient microorganisms, from unexplored environments, to be used in association with plants to alleviate the negative effects imposed by water stress, is an interesting alternative. Thus, cacti-associated bacteria from the Brazilian semi-arid region were isolated based on their ability to grow in medium with reduced water availability. Strains were tested for the production of exopolysaccharides (EPS), as well as in vitro plant growth promotion traits. A great proportion of the isolates belong to the genus Bacillus. From a total of forty-eight bacteria, 65% were able to grow in medium with reduced water availability (0.919Aw), exopolysaccharide production was observed for 65% of the strains. The production of indole acetic acid (IAA) exceeding 51mg mL-1 was observed for 4% and the high solubilization of Ca-P was verified for 6% of the isolates. No strain was able to produce hydrogen cyanide (HCN), 71% produced ammonia and 79% showed a halo of carboxymethyl cellulose (CMC) degradation. Zea mays L. growth promotion under water stress (30% of field capacity) was achieved by two strains of Bacillus spp. This is the first report to describe cacti-associated bacteria from Brazilian semi-arid with plant growth-promoting abilities. |
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Palavras-Chave: |
PGPR; Zea mays L. |
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Thesagro: |
Cacto; Deficiência hídrica; Milho; Regulador de crescimento; Rhizobium. |
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Thesaurus NAL: |
Cacti and succulents; Corn; Growth promotion; Rhizobacter; Semiarid zones; Water stress. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02359naa a2200385 a 4500
001 1967411
005 2013-09-30
008 2013 bl uuuu u00u1 u #d
100 1 $aKAVAMURA, V.
245 $aScreening of Brazilian cacti rhizobacteria for plant growth promotion under drought.$h[electronic resource]
260 $c2013
520 $aDrought is one of the major problems worldwide. The search for new and efficient microorganisms, from unexplored environments, to be used in association with plants to alleviate the negative effects imposed by water stress, is an interesting alternative. Thus, cacti-associated bacteria from the Brazilian semi-arid region were isolated based on their ability to grow in medium with reduced water availability. Strains were tested for the production of exopolysaccharides (EPS), as well as in vitro plant growth promotion traits. A great proportion of the isolates belong to the genus Bacillus. From a total of forty-eight bacteria, 65% were able to grow in medium with reduced water availability (0.919Aw), exopolysaccharide production was observed for 65% of the strains. The production of indole acetic acid (IAA) exceeding 51mg mL-1 was observed for 4% and the high solubilization of Ca-P was verified for 6% of the isolates. No strain was able to produce hydrogen cyanide (HCN), 71% produced ammonia and 79% showed a halo of carboxymethyl cellulose (CMC) degradation. Zea mays L. growth promotion under water stress (30% of field capacity) was achieved by two strains of Bacillus spp. This is the first report to describe cacti-associated bacteria from Brazilian semi-arid with plant growth-promoting abilities.
650 $aCacti and succulents
650 $aCorn
650 $aGrowth promotion
650 $aRhizobacter
650 $aSemiarid zones
650 $aWater stress
650 $aCacto
650 $aDeficiência hídrica
650 $aMilho
650 $aRegulador de crescimento
650 $aRhizobium
653 $aPGPR
653 $aZea mays L
700 1 $aSANTOS, S. N.
700 1 $aSILVA, J. L. da
700 1 $aPARMA, M. M.
700 1 $aAVILA, L. A.
700 1 $aVISCONTI, A.
700 1 $aZUCCHI, T. D.
700 1 $aTAKETANI, R. G.
700 1 $aANDREOTE, F. D.
700 1 $aMELO, I. S. de
773 $tMicrobiological Research, Jena$gv. 168, n. 4, p. 183-191, 2013.
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