title: Acetone-butanol-ethanol from sweet sorghum juice by an immobilized fermentation-gas stripping integration process.
abstract: In this study, sweet sorghum juice (SSJ) was used as the substrate in a simplified ABE fermentation-gas stripping integration process without nutrients supplementation. The sweet sorghum bagasse (SSB) after squeezing the fermentable juice was used as the immobilized carrier. The results indicated that the productivity of ABE fermentation process was improved by gas stripping integration. A total 24g/L of ABE solvents was obtained from 59.6g/L of initial sugar after 80h of fermentation with gas stripping. Then, long-term of fed-batch fermentation with continuous gas stripping was further performed. 112.9g/L of butanol, 44.1g/L of acetone, 9.5g/L of ethanol (total 166.5g/L of ABE) was produced in overall 312h of fermentation. At the same time, concentrated ABE product was obtained in the condensate of gas stripping.
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Di
authors.initials: D
authors.lastname: Cai
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Changjing
authors.initials: C
authors.lastname: Chen
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China. Electronic address: qinpeiyong@tsinghua.org.cn.
authors.forename: Peiyong
authors.initials: P
authors.lastname: Qin
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Miao
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Changwei
authors.initials: C
authors.lastname: Zhang
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Ping
authors.initials: P
authors.lastname: Li
authors.affiliation: National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
authors.forename: Tianwei
authors.initials: T
authors.lastname: Tan
mesh_terms: D000096:Acetone / Q000378:metabolism*; D061249:Batch Cell Culture Techniques; D001628:Beverages; D001709:Biotechnology / Q000379:methods*; D000440:Butanols / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005740:Gases; D007700:Kinetics; D045868:Sorghum / Q000737:chemistry*
chemical_list: D000440:Butanols; D005740:Gases; D000096:Acetone; D000431:Ethanol
keywords: ABE fermentation; Clostridium acetobutylicum; Gas stripping; Sweet sorghum juice