The influence of lignin degradation products on xylose fermentation by Klebsiella pneumoniae

Wood Based Lignin Reactions Important to the Biorefinery and Pulp and Paper Industries

“…It has been shown that LHW pretreatment of wet cake (solids left after corn is fermented to ethanol) releases some phenolics, specifically the less substituted ones, (Nishikawa et al 1988) and watersoluble xylo-oligosaccharides that can inhibit cellulases and β-glucosidases .…”

Effects of acetic acid, furfural and catechol combinations on ethanol fermentation of Kluyveromyces marxianus

“…The effects of the lignocellulosic biomass degradation products have been studied on different microorganisms such as prokaryotes [3][4][5][6] and yeasts [7][8][9][10][11]. It has been shown that the presence of toxic products in fermentation media can produce the following effects: (i) reduction in the specific growth rate [7,12]; (ii) decrease in the volumetric productivity of ethanol [7,9]; (iii) decrease in the specific productivity of ethanol [8,10]; (iv) decrease in biomass production [8,12].…”

Development of xylose-fermenting yeast Pichia stipitis for ethanol production through adaptation on hardwood hemicellulose acid prehydrolysate

“…Hence, the total ethanol yield could theoretically be increased by 25%, through the use of an efficient xylose‐fermenting yeast that could convert both hexoses and pentoses to ethanol (Bjorling and Lindman 1989), if it could tolerate low concentrations of the countless toxins present in the prehydrolysate generated during acid hydrolysis of plant biomass. These toxins prevent, or greatly reduce, growth and ethanol production (Clark and Mackie 1984; Tran and Chambers 1986; Nishikawa et al . 1988; van Zyl et al .…”