Figure 4. Fitted surface temperature-pH-enzyme activity. Three dimensional surface plot

From

Optimization of Culture Conditions to Enhance Nattokinase Production Using RSM

Kawther Isam Eldeen, Hanan Moawia Ibrahim, Elrashied Elimam Elkhidir, Hassan Beshir Elamin

American Journal of Microbiological Research. 2015, 3(5), 165-170 doi:10.12691/ajmr-3-5-3