Fig. 4
From: Improved production of melanin from Aspergillus fumigatus AFGRD105 by optimization of media factors
The surface plots of response surface methodology showing the effect of temperature, moisture and sodium dihydrogen phosphate and their mutual interaction on melanin production. a Sodium diphosphate and temparature; b Temperature and Moisture; c Moisture and Sodium diphosphate. d Melanin production before and after optimization