Figure 2From: Enhanced cell disruption strategy in the release of recombinant hepatitis B surface antigen from Pichia pastoris using response surface methodologyResponse surface 3D contour plots for effect of three main variables on cell disruption capability as (A) Number of passes and Biomass concentration; (B) Number of passes and Pulse pressure; and (C) Biomass concentration and Pulse pressure. When the effect of two variables was plotted, the other factor was set at middle level point.Back to article page