title: Effect of chemical pretreatments on corn stalk bagasse as immobilizing carrier of Clostridium acetobutylicum in the performance of a fermentation-pervaporation coupled system.
abstract: In this study, different pretreatment methods were evaluated for modified the corn stalk bagasse and further used the pretreated bagasse as immobilized carrier in acetone-butanol-ethanol fermentation process. Structural changes of the bagasses pretreated by different methods were analyzed by Fourier transform infrared, crystallinity index and scanning pictures by electron microscope. And the performances of batch fermentation using the corn stalk based carriers were evaluated. Results indicated that the highest ABE concentration of 23.86g/L was achieved using NaOH pretreated carrier in batch fermentation. Immobilized fermentation-pervaporation integration process was further carried out. The integration process showed long-term stability with 225-394g/L of ABE solvents on the permeate side of pervaporation membrane. This novel integration process was found to be an efficient method for biobutanol production.
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Di
authors: D
authors: Cai
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Ping
authors: P
authors: Li
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Changjing
authors: C
authors: Chen
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Yong
authors: Y
authors: Wang
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Song
authors: S
authors: Hu
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Caixia
authors: C
authors: Cui
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China. Electronic address: qinpeiyong@tsinghua.org.cn.
authors: Peiyong
authors: P
authors: Qin
authors: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors: Tianwei
authors: T
authors: Tan
mesh_terms: D020001:1-Butanol / Q000737:chemistry / Q000378:metabolism; D000096:Acetone / Q000737:chemistry / Q000378:metabolism; D001709:Biotechnology / Q000295:instrumentation / Q000379:methods*; D000440:Butanols / Q000737:chemistry / Q000378:metabolism; D018914:Cells, Immobilized / Q000737:chemistry / Q000378:metabolism; D002482:Cellulose; D046969:Clostridium acetobutylicum / Q000737:chemistry* / Q000378:metabolism; D000431:Ethanol / Q000737:chemistry / Q000378:metabolism; D005285:Fermentation; D008567:Membranes, Artificial; D018520:Plant Shoots / Q000737:chemistry; D012972:Sodium Hydroxide / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D003313:Zea mays / Q000737:chemistry*
chemical_list: D000440:Butanols; D008567:Membranes, Artificial; D012997:Solvents; D000096:Acetone; D000431:Ethanol; D012972:Sodium Hydroxide; D020001:1-Butanol; D002482:Cellulose; C027433:bagasse
keywords: ABE fermentation; Butanol; Clostridium immobilization; Corn stalk bagasse; Pervaporation