Comparison of biomass formation (A), glucose consumption (B), succinate production (C) and acetate production (D) of C. glutamicum wild type (squares, n = 3), C. glutamicumΔsdh (circles, n = 4) and C. glutamicum BL‐1 (triangles, n = 2) in aerobic batch cultivations in modified CGXII medium containing 4% (w/v) glucose under constantly controlled conditions of pH 7.0 and pO2 > 30% using a Multifors bioreactor system. The results displayed are mean values from n independent experiments.