Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/18764
Tipo: | Artigo |
Título: | The influence of presaccharification, fermentation temperature and yeast strain on ethanol production from sugarcane bagasse |
Autor(es): | Souza, Carlos J.A. de Costa, Daniela A. Rodrigues, Marina Q.R.B. Santos, Ancély F. dos Lopes, Mariana R. Abrantes, Aline B.P. Costa, Patrícia dos Santos Silveira, Wendel Batista Passos, Flávia M.L. Fietto, Luciano G. |
Abstract: | Ethanol can be produced from cellulosic biomass in a process known as simultaneous saccharification and fermentation (SSF). The presence of yeast together with the cellulolytic enzyme complex reduces the accumulation of sugars within the reactor, increasing the ethanol yield and saccharification rate. This paper reports the isolation of Saccharomyces cerevisiae LBM-1, a strain capable of growth at 42 °C. In addition, S. cerevisiae LBM-1 and Kluyveromyces marxianus UFV-3 were able to ferment sugar cane bagasse in SSF processes at 37 and 42 °C. Higher ethanol yields were observed when fermentation was initiated after presaccharification at 50 °C than at 37 or 42 °C. Furthermore, the volumetric productivity of fermentation increased with presaccharification time, from 0.43 g/L/h at 0 h to 1.79 g/L/h after 72 h of presaccharification. The results suggest that the use of thermotolerant yeasts and a presaccharification stage are key toincreasing yields in this process. |
Palavras-chave: | Simultaneous saccharification and fermentation Ethanol Sugarcane bagasse Thermotolerant yeast |
Editor: | Bioresource Technology |
Tipo de Acesso: | Elsevier Ltd |
URI: | https://doi.org/10.1016/j.biortech.2012.01.024 http://www.locus.ufv.br/handle/123456789/18764 |
Data do documento: | 7-Jan-2012 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf Until 2100-12-31 | artigo | 630,53 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.