Figure 3

Node analysis of metabolic fluxes in C. celer at different stages of growth. Fluxes at the phosphoenolpyruvate node (A), pyruvate node (B), acetyl-CoA node (C) and H2 flux (D) at pHÂ 7 with N2 sparging (Case I, black) and without N2 sparging (Case II, dark grey), and at pHÂ 6 with N2 sparging (Case III, light grey) and without N2 sparging (Case IV, white). The values represent the percentage of the flux considering 100 as the incoming flux at the node.