Figure 4From: Heterologous expression and optimization using experimental designs allowed highly efficient production of the PHY US417 phytase in Bacillus subtilis 168Effect of temperature on rPHY US417 activity and stability. (a) Temperature profile of rPHY US417. (b) Thermal stability of rPHY US417 at 75°C in the absence and presence of calcium are represented by white and black diamonds respectively.Back to article page