Fig. 6

Response surface curve showing the various interaction effects. a Initial pH and temperature (b) Initial pH and peptone (c) Initial pH and MgSO4. 7H2O (d) Temperature and peptone (e) Temperature and MgSO4. 7H2O (f) Peptone and MgSO4. 7H2O
Response surface curve showing the various interaction effects. a Initial pH and temperature (b) Initial pH and peptone (c) Initial pH and MgSO4. 7H2O (d) Temperature and peptone (e) Temperature and MgSO4. 7H2O (f) Peptone and MgSO4. 7H2O