Fig. 4From: Improvement of chaetominine production by tryptophan feeding and medium optimization in submerged fermentation of Aspergillus fumigatus CY018Response surface plot showing the effects of two various factors on CHA production. a Combined effects on the CHA production of ammonium acetate and sucrose, b combined effects on the CHA production of d-tryptophan and sucrose, and c combined effects on the CHA production of d-tryptophan and ammonium acetateBack to article page