Fig. 6

Structural parameters for the E. coli core metabolic network. The average over 400 random realizations of α and β with 90 percent noise is taken. Here, 5 different environmental conditions that represent different carbon sources with 2 to 6 carbon atoms is used. a Average growth rate vs. r. b Average shortest path from an input metabolite to each of the biomass contents for the optimized network vs. r. c Number of selected input metabolites after optimization process vs. r. d Number of nodes of the optimized network vs. r. e Number of reactions of the optimized network vs. r. f Number of regulons vs. r