Figure 4

Biomass growth and glucose consumption of A. niger in fermentations with varying copper concentrations. Biomass determination of mycelium in batch fermentation (♦—Medium12-Cu with 0.005 mM Cu²⁺; ■—Medium12 with 0.01 mM Cu²⁺ ; ▴—Medium12 + Cu with 0.02 mM Cu²⁺). The glucose consumption of three batch fermentations were shown on the secondary Axis (X— Medium12-Cu with 0.005 mM Cu²⁺; □—Medium12 with 0.01 mM Cu²⁺ ; ●—Medium12 + Cu with 0.02 mM Cu²⁺).