Fig. 4From: Effective utilization of wastewater for valuable validamycin A biosynthesis by Streptomyces hygroscopicus K2509 in plant-scale bioreactorThe radar maps of production cost for validamycin A per gram (a) and proportion of single cost factor (b). Blue line indicates the batch fermentation in tap water by K18, red line indicates the fed-batch fermentation in ion-exchange wastewater by K2509Back to article page