Butanol production from organosolv treated spent mushroom substrate integrated with in situ biodiesel extraction

Youshuang Zhu, Yunkang Chang, Jing Guan, Guoqiang Shanguan and Fengxue Xin

Renewable Energy, 2016, vol. 96, issue PA, 656-661

Abstract: The aim of this study is to convert spent mushroom substrate (SMS), a by-product from industrial mushroom production, to high production of biobutanol via integration with in situ butanol removal strategy. The modified organosolv pretreatment under mild conditions (35 °C, without acid catalyst) could efficiently improve the sugar yield (9.7% Vs 41.7%) of SMS by reducing lignin content (20.2% Vs 10.5%). The batch fermentation results using the organosolv treated SMS enzymatic broth indicate that adding extractant of biodiesel could enhance butanol production (14.65 g/L) compared to the control batch (12.03 g/L). Moreover, no significant toxicity of biodiesel is observed on the growth of solventogenic Clostridium acetobutylicum. In the fed-batch fermentation system with sugar feeding, the maximum amount of butanol is obtained at 30.21 g/L. This study suggests that in situ butanol removal using biodiesel from SMS enzymatic hydrolysate has great potential for commercial butanol production.

Keywords: Spent mushroom substrate; Organosolv pretreatment; In situ removal; Butanol; Clostridium (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148116303500
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:96:y:2016:i:pa:p:656-661

DOI: 10.1016/j.renene.2016.04.048

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().