title: Effects of furan derivatives on biohydrogen fermentation from wet steam-exploded cornstalk and its microbial community.
abstract: Understanding the role of furan derivatives, furfural (FUR) and 5-hydroxymethyl furfural (HMF), is important for biofuel production from lignocellulosic biomass. In this study, the effects of furan derivatives on hydrogen fermentation from wet steam-exploded cornstalk were investigated. The control experiments with only seed sludge indicated that HMF addition of up to 1g/L stimulated hydrogen production. Similar results were obtained using steam-exploded cornstalk as the feedstock. Hydrogen productivity was increased by up to 40% with the addition of HMF. In addition, over 90% of furan derivatives with an initial concentration below 1g/L were degraded. Pyosequencing showed that the addition of HMF and FUR resulted in different microbial communities. HMF led to a higher proportion of the genera Clostridium and Ruminococcaceae, supporting the increased hydrogen production. This study suggested that hydrogen fermentation could be a detoxifying step for steam-exploded cornstalk, and HMF and FUR exhibited different functions for hydrogen fermentation.
authors.affiliation: Laboratory of Environment-Enhancing Energy, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
authors.forename: Zhidan
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. Electronic address: chongzhang@tsinghua.edu.cn.
authors.forename: Chong
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Linjun
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Jianwei
authors.initials: J
authors.lastname: He
authors.affiliation: Laboratory of Environment-Enhancing Energy, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
authors.forename: Baoming
authors.initials: B
authors.lastname: Li
authors.affiliation: Laboratory of Environment-Enhancing Energy, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Yuanhui
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. Electronic address: xhxing@tsinghua.edu.cn.
authors.forename: Xin-Hui
authors.initials: XH
authors.lastname: Xing
mesh_terms: D056804:Biofuels; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology; D005285:Fermentation; D005662:Furaldehyde / Q000031:analogs & derivatives; D005663:Furans / Q000378:metabolism*; D006859:Hydrogen / Q000378:metabolism; D008031:Lignin / Q000378:metabolism*; D059013:Microbial Consortia; D035261:Plant Components, Aerial / Q000382:microbiology*; D013227:Steam; D003313:Zea mays / Q000382:microbiology*
chemical_list: D056804:Biofuels; D005663:Furans; D013227:Steam; C036909:lignocellulose; C008046:5-hydroxymethylfurfural; D006859:Hydrogen; D008031:Lignin; D005662:Furaldehyde
keywords: Anaerobic fermentation; Biohydrogen; Furan derivatives; Steam-exploded cornstalk