Fig. 3From: Growth, respiratory activity and chlorpyrifos biodegradation in cultures of Azotobacter vinelandii ATCC 12837Evolution of the oxygen transfer rate (OTR) and respiration quotient (RQ) in cultures of A. vinelandii grown in BS liquid medium with 10 (a), 20 (b), and 50Â mL (c) of filling volumesBack to article page