title: [Effects of chemically modified sugarcane bagasse on butanol production by immobilized Clostridium acetobutylicum XY16].
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.
authors.forename: Xiangping
authors.initials: X
authors.lastname: Kong
authors.forename: Aiyong
authors.initials: A
authors.lastname: He
authors.forename: Jianan
authors.initials: J
authors.lastname: Chen
authors.forename: Wufang
authors.initials: W
authors.lastname: Chen
authors.forename: Chunyan
authors.initials: C
authors.lastname: Yin
authors.forename: Pan
authors.initials: P
authors.lastname: Chen
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.forename: Min
authors.initials: M
authors.lastname: Jiang
mesh_terms: D061249:Batch Cell Culture Techniques; D019149:Bioreactors; D000440:Butanols / Q000378:metabolism*; D018914:Cells, Immobilized; D002482:Cellulose / Q000378:metabolism*; D046969:Clostridium acetobutylicum / Q000378:metabolism*; D005285:Fermentation; D031786:Saccharum / Q000737:chemistry*
chemical_list: D000440:Butanols; D002482:Cellulose; C027433:bagasse