Effects of chemically modified sugarcane bagasse on butanol production by immobilized Clostridium acetobutylicum XY16 / 生物工程学报
Chinese Journal of Biotechnology
; (12): 305-309, 2014.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-279520
Biblioteca responsável:
WPRO
ABSTRACT
Sugarcane bagasse modified by polyethylenimine (PEI) and glutaraldehyde (GA) was used as a carrier to immobilize Clostridium acetobutylicum XY16 in the process of butanol production. The effects of chemically modified sugarcane bagasse on batch and repeat-batch fermentations were investigated. Batch fermentation was conducted with an addition of 10 g/L modified sugarcane bagasse and 60 g/L glucose, resulting in a high solvent concentration of 21.67 g/L and productivity of 0.60 g/(L x h) with the treatment of 4 g/L PEI and 1 g/L GA. Compared to the fermentations by free cells and immobilized cells on unmodified sugarcane bagasse, the productivity increased 130.8% and 66.7%, respectively. The fibrous-bed bioreactor also maintained a stable butanol production during repeat-batch fermentations, achieving a maximum productivity of 0.83 g/(L x h) with a high yield of 0.42 g/g.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Celulose
/
Química
/
Células Imobilizadas
/
Reatores Biológicos
/
Saccharum
/
Clostridium acetobutylicum
/
Butanóis
/
Fermentação
/
Técnicas de Cultura Celular por Lotes
/
Metabolismo
Idioma:
Chinês
Revista:
Chinese Journal of Biotechnology
Ano de publicação:
2014
Tipo de documento:
Artigo