Figure 4From: Dynamic metabolomics differentiates between carbon and energy starvation in recombinant Saccharomyces cerevisiae fermenting xyloseDynamics of metabolites in the pentose phosphate pathway. Intracellular concentrations of A) XU5P, RU5P and R5P in TMB3057 (XR/XDH), B) XU5P, RU5P and R5P in TMB3359 (XI), C) S7P and D) 6PG during anaerobic batch fermentation of 20 g/L glucose and 40 g/L xylose using strains TMB3057 (XR/XDH, white markers) and TMB3359 (XI, black markers). Errors are given as 95% confidence intervals of the means calculated from duplicate experiments for each strain (5 ≤ n ≤ 10). The Y-axis in A and B is in log2 scale. The levels of S7P are calculated relative to the first time point at 14.5 h. The shaded area indicates the period until glucose depletion.Back to article page