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Fig. 7 | AMB Express

Fig. 7

From: Development of whole-cell catalyst system for sulfide biotreatment based on the engineered haloalkaliphilic bacterium

Fig. 7

The sulfide oxidation activity of IM328_sqr during six cycles of recycling. The experiments were carried out in a 15 mL centrifuge tube. Cells were resuspended at OD600 of 2 in 10 mL of 25 mM CHES buffer (pH 9.0) at 37 °C, 200 rpm. Na2S was added to 2000 µM to initiate the reaction in each cycle and was completely oxidized within 40 min. The process of sulfide oxidation was performed for 40 min. The remaining sulfide levels of the reaction system were detected after ten minutes of each cycle. Controls consisted of the same buffer without bacterial cells

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