| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
17/03/2022 |
|
Data da última atualização: |
23/01/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BONDANCIA, T. J.; FLORENCIO, C.; BACCARIN, G.; FARINAS, C. S. |
|
Afiliação: |
CRISTIANE SANCHEZ FARINAS, CNPDIA. |
|
Título: |
Cellulose nanostructures obtained using enzymatic cocktails with different compositions. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
International Journal of Biological Macromolecules, v. 207, 2022. |
|
Páginas: |
299-307 |
|
ISSN: |
0141-8130 |
|
DOI: |
https://doi.org/10.1016/j.ijbiomac.2022.03.007 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Cellulose nanostructures obtained from lignocellulosic biomass by the enzymatic route can offer advantages in terms of material properties and processing sustainability. However, most of the enzymatic cocktails commonly used in the saccharification of biomass are designed to promote the complete depolymerization of the cellulose structure into soluble sugars. Here, investigation was made of the way that the action of different commercially available cellulase enzyme cocktails can affect the production of nanocellulose. For this, enzymatic cocktails designed for complete or partial saccharification were compared, using eucalyptus cellulose pulp as a model feedstock. The results showed that all the enzymatic cocktails were effective in the formation of nanocellulose structures, with the complete saccharification enzymes being more efficient in promoting the coproduction of glucose (36.5 g/L, 87% cellulose conversion). The presence of auxiliary enzymes, especially xylanases, acted cooperatively to favor the production of nanostructures with higher crystallinity (up to 79%), higher surface charge (zeta potential up to − 30.9 mV), and more uniform dimensions within the size range of cellulose nanocrystals (80 to 350 nm). Interestingly, for the enzymatic cocktails designed for partial saccharification, the xylanase activity was more important than the endoglucanase activity in the production of nanocellulose with improved properties. The findings showed that the composition of the enzymatic cocktails already used for complete biomass saccharification can be suitable for obtaining nanocellulose, together with the release of a glucose stream, in a format compatible with the biorefinery concept. MenosCellulose nanostructures obtained from lignocellulosic biomass by the enzymatic route can offer advantages in terms of material properties and processing sustainability. However, most of the enzymatic cocktails commonly used in the saccharification of biomass are designed to promote the complete depolymerization of the cellulose structure into soluble sugars. Here, investigation was made of the way that the action of different commercially available cellulase enzyme cocktails can affect the production of nanocellulose. For this, enzymatic cocktails designed for complete or partial saccharification were compared, using eucalyptus cellulose pulp as a model feedstock. The results showed that all the enzymatic cocktails were effective in the formation of nanocellulose structures, with the complete saccharification enzymes being more efficient in promoting the coproduction of glucose (36.5 g/L, 87% cellulose conversion). The presence of auxiliary enzymes, especially xylanases, acted cooperatively to favor the production of nanostructures with higher crystallinity (up to 79%), higher surface charge (zeta potential up to − 30.9 mV), and more uniform dimensions within the size range of cellulose nanocrystals (80 to 350 nm). Interestingly, for the enzymatic cocktails designed for partial saccharification, the xylanase activity was more important than the endoglucanase activity in the production of nanocellulose with improved properties. The findings showed that the composition ... Mostrar Tudo |
|
Palavras-Chave: |
Biorefinery; Cellulose nanocrystal. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232637/1/P-Cellulose-nanostructures-obtained-using-enzymatic-cocktails-with.pdf
|
|
Marc: |
LEADER 02398naa a2200217 a 4500
001 2141011
005 2024-01-23
008 2022 bl uuuu u00u1 u #d
022 $a0141-8130
024 7 $ahttps://doi.org/10.1016/j.ijbiomac.2022.03.007$2DOI
100 1 $aBONDANCIA, T. J.
245 $aCellulose nanostructures obtained using enzymatic cocktails with different compositions.$h[electronic resource]
260 $c2022
300 $a299-307
520 $aCellulose nanostructures obtained from lignocellulosic biomass by the enzymatic route can offer advantages in terms of material properties and processing sustainability. However, most of the enzymatic cocktails commonly used in the saccharification of biomass are designed to promote the complete depolymerization of the cellulose structure into soluble sugars. Here, investigation was made of the way that the action of different commercially available cellulase enzyme cocktails can affect the production of nanocellulose. For this, enzymatic cocktails designed for complete or partial saccharification were compared, using eucalyptus cellulose pulp as a model feedstock. The results showed that all the enzymatic cocktails were effective in the formation of nanocellulose structures, with the complete saccharification enzymes being more efficient in promoting the coproduction of glucose (36.5 g/L, 87% cellulose conversion). The presence of auxiliary enzymes, especially xylanases, acted cooperatively to favor the production of nanostructures with higher crystallinity (up to 79%), higher surface charge (zeta potential up to − 30.9 mV), and more uniform dimensions within the size range of cellulose nanocrystals (80 to 350 nm). Interestingly, for the enzymatic cocktails designed for partial saccharification, the xylanase activity was more important than the endoglucanase activity in the production of nanocellulose with improved properties. The findings showed that the composition of the enzymatic cocktails already used for complete biomass saccharification can be suitable for obtaining nanocellulose, together with the release of a glucose stream, in a format compatible with the biorefinery concept.
653 $aBiorefinery
653 $aCellulose nanocrystal
700 1 $aFLORENCIO, C.
700 1 $aBACCARIN, G.
700 1 $aFARINAS, C. S.
773 $tInternational Journal of Biological Macromolecules$gv. 207, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Agrobiologia. |
|
Data corrente: |
01/11/2013 |
|
Data da última atualização: |
17/12/2013 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
BAHIA, P. P.; CAMACHO, N. N.; BALDANI, J. I.; COELHO, M. R. R. |
|
Afiliação: |
Priscila Pereira Bahia, graduanda da UFRRJ; Natalia Neutzling Camacho, Analista da Embrapa; JOSE IVO BALDANI, CNPAB; MARCIA REED RODRIGUES COELHO, CNPAB. |
|
Título: |
Caracterização molecular e fenotípica da coleção de culturas de bactérias diazotróficas e outros microorganismos multifuncionais da Embrapa Agrobiologia |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 13., 2013, Seropédica Ciência, saúde e esporte: caderno de resumos... Seropédica: Embrapa Agrobiologia, 2013. |
|
Idioma: |
Português |
|
Palavras-Chave: |
Caracterização; Coleção de culturas; Fenotípica; Molecular. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ojs.cnpab.embrapa.br/index.php/scjd/article/view/1774/392
|
|
Marc: |
LEADER 00743nam a2200181 a 4500
001 1970107
005 2013-12-17
008 2013 bl uuuu u01u1 u #d
100 1 $aBAHIA, P. P.
245 $aCaracterização molecular e fenotípica da coleção de culturas de bactérias diazotróficas e outros microorganismos multifuncionais da Embrapa Agrobiologia$h[electronic resource]
260 $aIn: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 13., 2013, Seropédica Ciência, saúde e esporte: caderno de resumos... Seropédica: Embrapa Agrobiologia$c2013
653 $aCaracterização
653 $aColeção de culturas
653 $aFenotípica
653 $aMolecular
700 1 $aCAMACHO, N. N.
700 1 $aBALDANI, J. I.
700 1 $aCOELHO, M. R. R.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agrobiologia (CNPAB) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
