Figure 4From: A strain of Saccharomyces cerevisiaeevolved for fermentation of lignocellulosic biomass displays improved growth and fermentative ability in high solids concentrations and in the presence of inhibitory compoundsGrowth of XR122N (solid blue) and AJP50 (dashed black) in the presence of various mixtures of inhibitory compounds found in biomass fermentations. Growth in (A) the aromatic mixture; (B) the acid mixture; (C) a combination of hydroxymethylfurfural (HMF), furfural (FF), and acetic acid; and (D) the furan mixture. All compounds and their concentration in the media are shown in Table 2. The inhibitory compounds were dissolved in tryptic soy broth with 2% w/v glucose. Error bars represent one standard deviation from the mean. XR122N required a higher volume of revived culture to obtain a cell concentration equivalent to 4.0 × 105 cells/ml; this increased the wood particulate matter in the culture and led to the higher initial optical density seen in some XR122N cultures.Back to article page