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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
13/06/2018 |
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Data da última atualização: |
13/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COLOMBI, B. L.; ZANONI, P. R. S.; TAVARES, L. B. B. |
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Afiliação: |
Bruna Lyra Colombi, FURB; PATRICIA RAQUEL SILVA ZANONI, CNPF; Lorena Benathar Ballod Tavares, FURB. |
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Título: |
Effect of phenolic compounds on bioconversion of glucose to ethanol by yeast Saccharomyces cerevisiae PE-2. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Canadian Journal of Chemical Engineering, v. 96, p. 1444-1450, July 2018. |
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DOI: |
10.1002/cjce.23114 |
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Idioma: |
Inglês |
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Conteúdo: |
The bioconversion of lignocellulosic biomasses to ethanol consists of three main steps: pre-treatment, enzymatic hydrolysis, and fermentation by microorganisms. Most pre-treatments induce the formation of substances with a potential inhibitory effect on the microbial metabolism, which may hinder the process. The objective of this study was to investigate the behaviour of Saccharomyces cerevisiae PE-2 yeast in the presence of four phenolic compounds (vanillin, syringaldehyde, syringic acid, and acetosyringone) resulting from the alkaline pre-treatment of eucalyptus with green liquor. Eucalyptus is a fast-growing tree, widely exploited by the paper and pulp industry in Brazil. It was observed that yeast growth and glucose assimilation were affected to an extent directly proportional to the initial amount of vanillin in the medium. Syringaldehyde in a concentration of 1.0 g/L had an adverse effect on the fermentation parameters related to ethanol production, which exhibited a decrease of approximately 50 %. When syringic acid and acetosyringone were used, although the cell growth and glucose consumption profiles were similar to those of the control, they inhibited the conversion at concentrations of 0.1 and 1.0 g/L. |
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Palavras-Chave: |
Etanol lignocelulósico; Inhibitors; Inibidores; Lignocellulosic ethanol; Pré tratamento; Pre-treatment; Saccharomyces cerevisiae PE-2. |
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Thesagro: |
Composto Fenólico; Fermentação Alcoólica. |
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Thesaurus Nal: |
Alcoholic fermentation; Phenolic compounds; Yeasts. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02182naa a2200301 a 4500
001 2092446
005 2018-06-13
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1002/cjce.23114$2DOI
100 1 $aCOLOMBI, B. L.
245 $aEffect of phenolic compounds on bioconversion of glucose to ethanol by yeast Saccharomyces cerevisiae PE-2.$h[electronic resource]
260 $c2018
520 $aThe bioconversion of lignocellulosic biomasses to ethanol consists of three main steps: pre-treatment, enzymatic hydrolysis, and fermentation by microorganisms. Most pre-treatments induce the formation of substances with a potential inhibitory effect on the microbial metabolism, which may hinder the process. The objective of this study was to investigate the behaviour of Saccharomyces cerevisiae PE-2 yeast in the presence of four phenolic compounds (vanillin, syringaldehyde, syringic acid, and acetosyringone) resulting from the alkaline pre-treatment of eucalyptus with green liquor. Eucalyptus is a fast-growing tree, widely exploited by the paper and pulp industry in Brazil. It was observed that yeast growth and glucose assimilation were affected to an extent directly proportional to the initial amount of vanillin in the medium. Syringaldehyde in a concentration of 1.0 g/L had an adverse effect on the fermentation parameters related to ethanol production, which exhibited a decrease of approximately 50 %. When syringic acid and acetosyringone were used, although the cell growth and glucose consumption profiles were similar to those of the control, they inhibited the conversion at concentrations of 0.1 and 1.0 g/L.
650 $aAlcoholic fermentation
650 $aPhenolic compounds
650 $aYeasts
650 $aComposto Fenólico
650 $aFermentação Alcoólica
653 $aEtanol lignocelulósico
653 $aInhibitors
653 $aInibidores
653 $aLignocellulosic ethanol
653 $aPré tratamento
653 $aPre-treatment
653 $aSaccharomyces cerevisiae PE-2
700 1 $aZANONI, P. R. S.
700 1 $aTAVARES, L. B. B.
773 $tCanadian Journal of Chemical Engineering$gv. 96, p. 1444-1450, July 2018.
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| 1. |  | CHAMBELA NETO, A.; SILVA, J. F. C. DA; DERESZ, F.; FERNANDES, A. M.; VIEIRA, R. A. M.; VASQUEZ, H. N. Intervalo de desfolha fixo ou em função da interceptação luminosa em pastagem de Urochloa maxima CV. tanzânia. 1-Estudos morfológicos e morfogênicos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 2. | | PERES, A. A. DE C.; CARVALHO, C. A. B. DE; CARVALHO, M. I. DE A. B.; VASQUEZ, H. N.; SILVA, J. F. C. DA; CLIPES, R. C.; MORENZ, M. J. F. Production and quality of milk from Mantiqueira dairy cows feeding on mombasa grass pasture and receiving different sources of roughage supplementation. Revista Brasileira de Zootecnia, v. 41, n. 3, p. 790-796, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 2 | |
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