Fig. 2.
a Exposure of wild type P. fermentans with chemical mutagen EMS for different times; b Specific enzymatic activity of xylose reductase and xylitol dehydrogenase during fermentation; Batch fermentation for xylitol production by c wild type and d mutant (E015) strain of P. fermentans. Symbols: filled circle (xylose), filled triangle (OD600) and empty circle (xylitol). The graphs represent the average values of triplicate experiments performed with less than 10% S.D