Abstract
Pretreatment of lignocellulosic biomass generates different types of inhibitors (e.g., furfural and acetic acid), which could remarkably inhibit subsequent ethanol fermentation. Here, biochar as an additive in the fermentation broth was first applied to enhance ethanol production by Z. mobilis wild-type strain ZM4 in the presence of typical inhibitors. This study showed that the biochar-mediated tolerance to furfural and acetic acid for the strain Z. mobilis ZM4 was the highest reported level, resulting in much higher ethanol productivity under stress conditions than that in non-treated conditions. Further analysis showed that adsorptive detoxification was not the controlling factor for enhanced ethanol production under stress conditions, attributed to its low removal of furfural (< 20%) and incapability of acetic acid removal. When biochar was filtered from the biochar-treated inhibitor-containing broth, it still showed enhanced ethanol production. Furthermore, Z. mobilis immobilized on biochar was also observed. Thus, biochar extracts in the fermentation broth and cell immobilization on biochar might be the controlling factors for enhanced ethanol production under stress conditions. These results indicate that biochar-mediate...Continue Reading
References
Jan 1, 1970·Journal of General Microbiology·E A Dawes, P J Large
Jun 1, 2000·Microbial Ecology·M L YallopP Wellsbury
Feb 28, 2004·Bioresource Technology·Solange Inês Mussatto, Inês Conceição Roberto
Apr 10, 2007·Water Research·Carlos Felipe Leon MoralesHans-Curt Flemming
Feb 3, 2009·Applied Microbiology and Biotechnology·João R M AlmeidaGunnar Lidén
Oct 17, 2009·Biotechnology for Biofuels·Tirzah Y MillsRyan T Gill
Apr 21, 2010·Nature Chemical Biology·Hongwei Dong, Jie Bao
May 13, 2010·BMC Microbiology·Shihui YangSteven D Brown
May 18, 2012·Applied Microbiology and Biotechnology·Ming-xiong HeXiao-hong Su
Jul 11, 2013·Biotechnology for Biofuels·Mary Ann FrandenMin Zhang
Dec 21, 2013·Biotechnology Journal·Ning ZhaoFeng-Wu Bai
Apr 15, 2014·Bioresource Technology·Lichun DaiQichun Hu
Jul 16, 2014·Biotechnology for Biofuels·Ming Xiong HeQi Chun Hu
Apr 13, 2015·Bioresource Technology·F MonlauA Barakat
Apr 22, 2015·Applied Microbiology and Biotechnology·Fu-Rong TanMing-Xiong He
May 4, 2015·Applied Microbiology and Biotechnology·Zong-Xia ShuiMing-Xiong He
Oct 21, 2016·Microbial Biotechnology·Shihui YangMin Zhang
Oct 4, 2016·Journal of Environmental Management·C SambusitiA Barakat
Jan 4, 2017·Bioresource Technology·Dou WangChun Song
Apr 30, 2017·Journal of Environmental Management·Lichun DaiJie Zhao
Nov 23, 2017·The Science of the Total Environment·David O'ConnorDeyi Hou
Feb 22, 2018·Applied Microbiology and Biotechnology·Suzhen HuangMinhua Zhang
Apr 9, 2018·Metabolic Engineering·Xia WangShihui Yang
Jul 27, 2018·Bioresource Technology·Lichun DaiGuoquan Hu
Jan 11, 2019·Biotechnology for Biofuels·Bo WuMingxiong He
Jan 30, 2019·Environmental Science & Technology·Rebecca A HillNicholas C Fitzkee
Mar 17, 2019·Trends in Biotechnology·Juan XiaFeng-Wu Bai