|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
|
Data corrente: |
28/06/2013 |
|
Data da última atualização: |
28/06/2013 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SÁ, L. R. V. de; CAMMAROTA, M. C.; OLIVEIRA, T. C. de; OLIVEIRA, E. M. M.; MATOS, A.; LEITÃO, V. S. F. |
|
Afiliação: |
LÍVIAN RIBEIRO VASCONCELOS DE SÁ, INT/UFRJ; MAGALY CHRISTE CAMMAROTA, UFRJ; TATIANE CORREA DE OLIVEIRA, CTAA; EDNA MARIA MORAIS OLIVEIRA, CTAA; ANDREA MATOS DOS SANTOS, CNPS; VIRIDIANA SANTANA FERREIRA-LEITÃO, INT/UFRJ. |
|
Título: |
Pentoses, hexoses and glycerin as substrates for biohydrogen production: an approach for brazilian biofuel integration. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
International Journal of Hydrogen Energy, v. 38, n. 7, p. 2986-2997, Mar. 2013 |
|
DOI: |
10.1016/j.ijhydene.2012.12.103 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Biofuels production in Brazil is a traditional activity, and it has becoming more important each year. Within this context, biohydrogen production could exploit residual streams from first generation ethanol (ethanol 1G), second generation ethanol (ethanol 2G) and biodiesel production. Therefore hexoses, pentoses and glycerin were tested as substrates for hydrogen production. Firstly, the effects of different inoculum pretreatments (acid, alkaline and heat) on bacterial communities' performance were evaluated through the levels of Clostridium hydrogenase expression. The heat pretreated inoculum provided the highest yield of H2 (4.62 mol H2/mol sucrose) and also the highest level of hydrogenase expression, 64 times higher when compared with untreated inoculum after 72 h. Then C5 and C6 sugars and also glycerin were tested for H2 production (35 °C and pH 5.5), which resulted in promising yields of H2: sucrose (4.24 mol H2/mol sucrose), glucose (2.19 mol H2/mol glucose), fructose (2.09 mol H2/mol fructose), xylose (1.88 mol H2/mol xylose) and glycerin (0.80 mol H2/mol glycerin). |
|
Palavras-Chave: |
Biohidrogênio; Fermentação escura; Hidrogenases. |
|
Thesagro: |
Glicerina. |
|
Thesaurus Nal: |
hexoses; pentoses. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 01904naa a2200265 a 4500
001 1960831
005 2013-06-28
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ijhydene.2012.12.103$2DOI
100 1 $aSÁ, L. R. V. de
245 $aPentoses, hexoses and glycerin as substrates for biohydrogen production$ban approach for brazilian biofuel integration.
260 $c2013
520 $aBiofuels production in Brazil is a traditional activity, and it has becoming more important each year. Within this context, biohydrogen production could exploit residual streams from first generation ethanol (ethanol 1G), second generation ethanol (ethanol 2G) and biodiesel production. Therefore hexoses, pentoses and glycerin were tested as substrates for hydrogen production. Firstly, the effects of different inoculum pretreatments (acid, alkaline and heat) on bacterial communities' performance were evaluated through the levels of Clostridium hydrogenase expression. The heat pretreated inoculum provided the highest yield of H2 (4.62 mol H2/mol sucrose) and also the highest level of hydrogenase expression, 64 times higher when compared with untreated inoculum after 72 h. Then C5 and C6 sugars and also glycerin were tested for H2 production (35 °C and pH 5.5), which resulted in promising yields of H2: sucrose (4.24 mol H2/mol sucrose), glucose (2.19 mol H2/mol glucose), fructose (2.09 mol H2/mol fructose), xylose (1.88 mol H2/mol xylose) and glycerin (0.80 mol H2/mol glycerin).
650 $ahexoses
650 $apentoses
650 $aGlicerina
653 $aBiohidrogênio
653 $aFermentação escura
653 $aHidrogenases
700 1 $aCAMMAROTA, M. C.
700 1 $aOLIVEIRA, T. C. de
700 1 $aOLIVEIRA, E. M. M.
700 1 $aMATOS, A.
700 1 $aLEITÃO, V. S. F.
773 $tInternational Journal of Hydrogen Energy$gv. 38, n. 7, p. 2986-2997, Mar. 2013
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
|
