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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: |
18/03/2022 |
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Data da última atualização: |
24/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
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. |
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Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
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Título: |
Bio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 29, 2022. |
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Páginas: |
8665-8683 |
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DOI: |
https://doi.org/10.1007/s11356-021-16203-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received attention due to their attractive properties. In this study, bio-based films/nanopapers were produced with CNFs from banana tree pseudostem (BTPT) wastes and Eucalyptus kraft cellulose (EKC) and were evaluated by their properties, such as mechanical strength, biodegradability, and light transmittance. The CNFs were produced by mechanical fibrillation (after 20 and 40 passages) from suspensions of BTPT (alkaline pre-treated) and EKC. Films/nanopapers were produced by casting from both suspensions with concentrations of 2% (based in dry mass of CNF). The BTPT films/nanopapers showed greater mechanical properties, with Young’s modulus and tensile strength around 2.42 GPa and 51 MPa (after 40 passages), respectively. On the other hand, the EKC samples showed lower disintegration in water after 24 h and biodegradability. The increase in the number of fibrillation cycles produced more transparent films/nanopapers and caused a significant reduction of water absorption for both raw materials. The permeability was similar for the films/nanopapers from BTPT and EKC. This study indicated that attractive mechanical properties and biodegradability, besides low cost, could be achieved by bio-based nanomaterials, with potential for being applied as emulsifying agents and special membranes, enabling more efficient utilization of agricultural wastes. |
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Palavras-Chave: |
Agro-industrial wastes; Bio-based material; Cellulose nanofibrils; Microfibrillated cellulose (MFC). |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02393naa a2200277 a 4500
001 2141029
005 2022-06-24
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-021-16203-4$2DOI
100 1 $aGUIMARÃES, B. M. R.
245 $aBio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials.$h[electronic resource]
260 $c2022
300 $a8665-8683
520 $aThe growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received attention due to their attractive properties. In this study, bio-based films/nanopapers were produced with CNFs from banana tree pseudostem (BTPT) wastes and Eucalyptus kraft cellulose (EKC) and were evaluated by their properties, such as mechanical strength, biodegradability, and light transmittance. The CNFs were produced by mechanical fibrillation (after 20 and 40 passages) from suspensions of BTPT (alkaline pre-treated) and EKC. Films/nanopapers were produced by casting from both suspensions with concentrations of 2% (based in dry mass of CNF). The BTPT films/nanopapers showed greater mechanical properties, with Young’s modulus and tensile strength around 2.42 GPa and 51 MPa (after 40 passages), respectively. On the other hand, the EKC samples showed lower disintegration in water after 24 h and biodegradability. The increase in the number of fibrillation cycles produced more transparent films/nanopapers and caused a significant reduction of water absorption for both raw materials. The permeability was similar for the films/nanopapers from BTPT and EKC. This study indicated that attractive mechanical properties and biodegradability, besides low cost, could be achieved by bio-based nanomaterials, with potential for being applied as emulsifying agents and special membranes, enabling more efficient utilization of agricultural wastes.
653 $aAgro-industrial wastes
653 $aBio-based material
653 $aCellulose nanofibrils
653 $aMicrofibrillated cellulose (MFC)
700 1 $aSCATOLINO, M. V.
700 1 $aMARTINS, M. A.
700 1 $aFERREIRA, S. R.
700 1 $aMENDES, L. M.
700 1 $aLIMA, J. T.
700 1 $aGUIMARÃES JUNIOR, M.
700 1 $aTONOLI, G. H. D.
773 $tEnvironmental Science and Pollution Research$gv. 29, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
25/10/2017 |
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Data da última atualização: |
05/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
TONIAZZO, C.; BRAMMER, S. P.; MINELLA, E.; CAVERZAN, A.; WIETHÖLTER, P.; CASASSOLA, A.; GRANDO, M. F. |
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Afiliação: |
CLAUDIA TONIAZZO; SANDRA PATUSSI BRAMMER, CNPT; EUCLYDES MINELLA, CNPT; ANDRÉIA CAVERZAN; PAULA WIETHÖLTER; ALICE CASASSOLA; MAGALI FERRARI GRANDO, UPF. |
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Título: |
Malting quality and genetic diversity in brazilian elite barley germplasm. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
International Journal of Current Research, v. 9, n. 6, p. 52352-52357, June 2017. |
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ISSN: |
0975-833X |
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Idioma: |
Inglês |
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Palavras-Chave: |
Diastatic power; Kolbach index. |
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Thesagro: |
Cevada; Hordeum Vulgare; Malte; Variação genética. |
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Thesaurus NAL: |
Alpha-amylase; Barley; Beta-glucans; Genetic variation; Malting quality; Microsatellite repeats. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165546/1/ID44155-2017v9n6IntJCurrRes.pdf
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Marc: |
LEADER 00953naa a2200337 a 4500
001 2078136
005 2018-02-05
008 2017 bl uuuu u00u1 u #d
022 $a0975-833X
100 1 $aTONIAZZO, C.
245 $aMalting quality and genetic diversity in brazilian elite barley germplasm.$h[electronic resource]
260 $c2017
650 $aAlpha-amylase
650 $aBarley
650 $aBeta-glucans
650 $aGenetic variation
650 $aMalting quality
650 $aMicrosatellite repeats
650 $aCevada
650 $aHordeum Vulgare
650 $aMalte
650 $aVariação genética
653 $aDiastatic power
653 $aKolbach index
700 1 $aBRAMMER, S. P.
700 1 $aMINELLA, E.
700 1 $aCAVERZAN, A.
700 1 $aWIETHÖLTER, P.
700 1 $aCASASSOLA, A.
700 1 $aGRANDO, M. F.
773 $tInternational Journal of Current Research$gv. 9, n. 6, p. 52352-52357, June 2017.
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