Effect of non-ionic surfactants on butanol production with Clostridium acetobutylicum ATCC 824 / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 784-792, 2014.
Artigo
em Chinês
| WPRIM
| ID: wpr-279486
ABSTRACT
The low butanol concentration of acetone-butanol-ethanol fermentation causes uneconomical product recovery. In this work, the effect of small molecule non-ionic surfactants on butanol fermentation was evaluated, using laboratory stocks of Clostridium acetobutylicum ATCC 824. Non-ionic surfactants substantially increased butanol production when additive amount was higher than 1% (W/W). Butanol concentration reached 16.9 g/L with 5% (W/W) Tween 80 and 100 g/L glucose in a 5 L fermenter. It was found that surfactants micelle solubilization capacity to butanol was very limited, indicating that butanol could hardly enter the surfactants micelle. Butanol production improvement was probably caused by cell surface hydrophobicity change due to surfactants adsorption.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Acetona
/
Tensoativos
/
Química
/
Reatores Biológicos
/
Clostridium acetobutylicum
/
Etanol
/
Butanóis
/
Fermentação
/
Metabolismo
Idioma:
Chinês
Revista:
Chinese Journal of Biotechnology
Ano de publicação:
2014
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS