Fig. 4

Effect of pH regulation on the metabolite production of N. cameroonii G341. The fungus was grown in a stirred tank reactor with straw as the sole carbon source. a Metabolite production and pH development during growth without pH regulation; b comparison of pH regulated and unregulated lactate and hydrogen production. pH from the unregulated fermenters is shown and pH for the regulated was kept constantly at 6.8; c metabolite production and pH development during growth with pH regulation