Influence of redox potential on the glucose catabolism of chemostat grownBacillus licheniformis

Summary The effect of the redox potential on the by-production of acetic acid byBacillus licheniformis grown in a chemostat has been studied. It was demonstrated thatB. licheniformis produced acetic acid when it was grown at a low growth rate, low oxygen supplies, and low redox potentials.Furthermore, it was shown that the acetic acid productivity was strongly dependent on redox potential, giving a maximum productivity at redox potentials about 110 mV. The observed effect was correlated to the established theory of the dependence of intracellular enzymes on oxygen and redox potential. It is proposed that the redox potential can be a variable that can be used in a regulatory procedure.