In this work, the individual effect of inhibitory compounds was only studied for formic and acetic acids, results with HMF and furfural were already reported by Bellido et al. (2011) under identical fermentation conditions as those used in this study. Media called SimB, SimC, and SimD simulated the composition of hydrolysates from methods B, C, and D, in terms of formic and acetic acids, HMF and furfural.