Figure 3: (A) Cr(VI) concentrations in the culture of E. coli strain DH5α and S. aureus LZ-01 in 0.4 mM Cr(VI) and in uninoculated medium (control). Bars represent Cr(VI) level prior to incubation (□), Cr(VI) in supernatant after incubation for 120h (▤), total soluble and sorbed Cr(VI) (■) and Cr(III) (▨) in centrifuged cells. (B) It shows the results of washed cell incubations for 5 hours.