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 1 g/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 1 g/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.
Original language | English (US) |
---|---|
Pages (from-to) | 152-159 |
Number of pages | 8 |
Journal | Bioresource Technology |
Volume | 175 |
DOIs | |
State | Published - Jan 1 2015 |
Keywords
- Anaerobic fermentation
- Biohydrogen
- Furan derivatives
- Steam-exploded cornstalk
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Waste Management and Disposal