Research Article

Optimization of Acid Protease Production by Aspergillus niger I1 on Shrimp Peptone Using Statistical Experimental Design

Figure 2

Response surface plot of proteolytic enzyme production showing the interactive effects of the temperature and KH2PO4 concentrations (a, b), and initial pH, temperature, and KH2PO4 concentrations (c).
564932.fig.002a
(a)
564932.fig.002b
(b)
564932.fig.002c
(c)