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| Registros recuperados : 5 | |
| 2. |  | LOPES, S. J.; BRUM, B.; FAGAN, E. B.; LUZ, G. L. da; MEDEIROS, S. L. P. Estimativa da área foliar de meloeiro em estádios fenólogicos por fotos digitais. Ciência Rural, Santa Maria, v. 37, n. 4, p. 1153-1156, jul./ago. 2007.| Biblioteca(s): Embrapa Hortaliças. |
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| 3. | | SANTOS, P. M.; LOPES, S. J.; LÚCIO, A. D; SANTOS, O. de S.; SANTOS, V. J.; BRUM, B. Cronograma de amostragem de plantas de alface hidropônica para ajuste de curvas de crescimento. Ciência Rural, Santa Maria, v. 37, n. 6, p. 1601-1608, nov./dez. 2007| Biblioteca(s): Embrapa Hortaliças. |
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| 4. | | STÜRMER, S. L. K.; ROSSATO, O. B.; COPETTI, A. C. C.; SANTOS, D. R. dos; CALEGARI, A.; BRUM, B. Variações nos teores de carbono orgânico em função do desmatamento e revegetação natural do solo. Ciência Florestal, Santa Maria, v. 21, n. 2, p. 241-250, abr./jun. 2011.| Biblioteca(s): Embrapa Florestas. |
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| 5. | | SIMIONATTO, S.; MARCHIORO, S. B.; GALLI, V.; BRUM, B. C.; KLEIN, C. S.; REBELATTO, R.; SILVA, E. F.; BORSUK, S.; CONCEOÇÃO, F. R.; DELLAGOSTIN, O. A. Immunological characterization of Mycoplasma hyopneumoniae recombinant proteins. Comparative Immunology, Microbiology and Infectious Diseases, v. 35, n. 2, p. 209-216, 2012. Projeto: 03.09.00.046.| Biblioteca(s): Embrapa Suínos e Aves. |
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| Registros recuperados : 5 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Solos. |
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Data corrente: |
16/05/2011 |
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Data da última atualização: |
12/06/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SÁ, L. R. V. de; OLIVEIRA, T. C. de; SANTOS, T. F. dos; SANTOS, A. M. dos; CAMMAROTA, M. C.; OLIVEIRA, E. M. M.; FERREIRA-LEITÃO, V. S. |
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Afiliação: |
LÍVIAN RIBEIRO VASCONCELOS DE SÁ, INT; TATIANE CORREA DE OLIVEIRA, CTAA; THIAGO FERREIRA DOS SANTOS, UNIG; ANDREA MATOS DOS SANTOS, CNPS; MAGALI CHRISTE CAMMAROTA, UFRJ; EDNA MARIA MORAIS OLIVEIRA, CTAA; VIRIDIANA SANTANA FERREIRA-LEITÃO, INT. |
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Título: |
Hydrogenase activity monitoring in the fermentative hydrogen production using heat pretreated sludge: a useful approach to evaluate bacterial communities performance. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
International Journal of Hydrogen Energy, v. 36, n. 13, p. 7543-7549, Jul. 2011. |
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DOI: |
10.1016/j.ijhydene.2011.03.119 |
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Idioma: |
Inglês |
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Conteúdo: |
The conversion of organic compounds into H2 has received increasing attention. Enrichment of inocula by heat pretreatment eliminates non-spore forming hydrogen consuming microorganisms and promotes spore germination in genus Clostridium, which is known as one of the key hydrogen producers. Useful information about metabolic pathway is provided by some intermediate metabolites, such as: acetic, propionic, butyric and formic acids. The increase of acetic/butyric acids ratio indicates H2 production in heat pretreated inoculum when compared to untreated inoculum in the same cultivation conditions. The effect of heat pretreatment on inocula and consequently on the performance of bacterial communities responsible for H2 production was monitored through the measurement of the level of hydrogenase gene expression, as well as through the content and distribution of volatile fatty acids. The acetic acid type fermentation was followed by the microorganisms presented in untreated and heat pretreated sludge. The medium containing untreated sludge presented a ratio of acetic/butyric acid of approximately 4, the same parameter was 7 when heat pretreated sludge was employed. The level of hydrogenase gene expression tripled when heat pretreated inoculum was used, indicating a higher production of H2. |
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Palavras-Chave: |
Biohidrogênio; Heat pretreatment; Hidrogenase; Hydrogenase gene; Pré-tratamento de calor; Real-time RT-PCR. |
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Thesagro: |
Ácido Graxo Volátil; Hidrogênio. |
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Thesaurus NAL: |
biohydrogen; mixed culture; volatile fatty acids. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 02424naa a2200337 a 4500
001 1894614
005 2024-06-12
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ijhydene.2011.03.119$2DOI
100 1 $aSÁ, L. R. V. de
245 $aHydrogenase activity monitoring in the fermentative hydrogen production using heat pretreated sludge$ba useful approach to evaluate bacterial communities performance.$h[electronic resource]
260 $c2011
520 $aThe conversion of organic compounds into H2 has received increasing attention. Enrichment of inocula by heat pretreatment eliminates non-spore forming hydrogen consuming microorganisms and promotes spore germination in genus Clostridium, which is known as one of the key hydrogen producers. Useful information about metabolic pathway is provided by some intermediate metabolites, such as: acetic, propionic, butyric and formic acids. The increase of acetic/butyric acids ratio indicates H2 production in heat pretreated inoculum when compared to untreated inoculum in the same cultivation conditions. The effect of heat pretreatment on inocula and consequently on the performance of bacterial communities responsible for H2 production was monitored through the measurement of the level of hydrogenase gene expression, as well as through the content and distribution of volatile fatty acids. The acetic acid type fermentation was followed by the microorganisms presented in untreated and heat pretreated sludge. The medium containing untreated sludge presented a ratio of acetic/butyric acid of approximately 4, the same parameter was 7 when heat pretreated sludge was employed. The level of hydrogenase gene expression tripled when heat pretreated inoculum was used, indicating a higher production of H2.
650 $abiohydrogen
650 $amixed culture
650 $avolatile fatty acids
650 $aÁcido Graxo Volátil
650 $aHidrogênio
653 $aBiohidrogênio
653 $aHeat pretreatment
653 $aHidrogenase
653 $aHydrogenase gene
653 $aPré-tratamento de calor
653 $aReal-time RT-PCR
700 1 $aOLIVEIRA, T. C. de
700 1 $aSANTOS, T. F. dos
700 1 $aSANTOS, A. M. dos
700 1 $aCAMMAROTA, M. C.
700 1 $aOLIVEIRA, E. M. M.
700 1 $aFERREIRA-LEITÃO, V. S.
773 $tInternational Journal of Hydrogen Energy$gv. 36, n. 13, p. 7543-7549, Jul. 2011.
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