Fig. 4From: Growth, respiratory activity and chlorpyrifos biodegradation in cultures of Azotobacter vinelandii ATCC 12837Biomass (a), protein content (b), and CFUs growth kinetics (c) of A. vinelandii cultures in 250Â mL shake flasks at different filling volumes 10Â mL (Black circle), 20Â mL (black diamond suit) and 50Â mL (black square). Data are presented as the mean and standard deviation from three experimentsBack to article page