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Figure 5 | Microbial Cell Factories

Figure 5

From: Metabolic pathway engineering based on metabolomics confers acetic and formic acid tolerance to a recombinant xylose-fermenting strain of Saccharomyces cerevisiae

Figure 5

Effects of acetic acid on fermentation of xylose as a sole carbon source at 30°C using S. cerevisiae MT8-1X/TKL (A-C) and MT8-1X/pGK405 (D-F). Acetic acid was added to the fermentation at a concentration of 0 mM (A, D), 30 mM (B, E) or 60 mM (C, F). The values are the averages of four independent experiments, ±SEM. Symbols: closed circles, biomass (OD 600); closed squares, xylose; open circles, ethanol; closed triangles, glycerol; open squares, xylitol.

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