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.
Article
in Chinese
| WPRIM
| ID: wpr-279520
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Cellulose
/
Chemistry
/
Cells, Immobilized
/
Bioreactors
/
Saccharum
/
Clostridium acetobutylicum
/
Butanols
/
Fermentation
/
Batch Cell Culture Techniques
/
Metabolism
Language:
Chinese
Journal:
Chinese Journal of Biotechnology
Year:
2014
Type:
Article
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