Fig. 1
From: Process optimization for mass production of 2,3-butanediol by Bacillus subtilis CS13
Response surface graphs of 2,3-BD production by B. subtilis CS13. a Effect of ammonium citrate and sucrose. b Effect of MgSO4·7H2O and sucrose. c Effect of MgSO4·7H2O and ammonium citrate
