title: Effect of dilute alkaline pretreatment on the conversion of different parts of corn stalk to fermentable sugars and its application in acetone-butanol-ethanol fermentation.
abstract: To investigate the effect of dilute alkaline pretreatment on different parts of biomass, corn stalk was separated into flower, leaf, cob, husk and stem, which were treated by NaOH in range of temperature and chemical loading. The NaOH-pretreated solid was then enzymatic hydrolysis and used as the substrate for batch acetone-butanol-ethanol (ABE) fermentation. The results demonstrated the five parts of corn stalk could be used as potential feedstock separately, with vivid performances in solvents production. Under the optimized conditions towards high product titer, 7.5g/L, 7.6g/L, 9.4g/L, 7g/L and 7.6g/L of butanol was obtained in the fermentation broth of flower, leaf, cob, husk and stem hydrolysate, respectively. Under the optimized conditions towards high product yield, 143.7g/kg, 126.3g/kg, 169.1g/kg, 107.7g/kg and 116.4g/kg of ABE solvent were generated, respectively.
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: 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: Zhangfeng
authors.initials: Z
authors.lastname: Luo
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: 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.
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: Zheng
authors.initials: Z
authors.lastname: Wang
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 / Q000737:chemistry*; D056804:Biofuels; D000440:Butanols / Q000737:chemistry*; D002241:Carbohydrates / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry*; D005285:Fermentation; D006868:Hydrolysis; D008031:Lignin / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D012972:Sodium Hydroxide / Q000737:chemistry*; D012997:Solvents; D003313:Zea mays / Q000737:chemistry / Q000187:drug effects*
chemical_list: D056804:Biofuels; D000440:Butanols; D002241:Carbohydrates; D012997:Solvents; D000096:Acetone; D000431:Ethanol; D012972:Sodium Hydroxide; D008031:Lignin
keywords: ABE fermentation; Alkaline pretreatment; Butanol; Corn stalk