RESUMO
The present study put forth with the fundamental objective to the exploration of exoelectrogens from theextremophilic environment and to investigate the electricity generation from them. A total of 20 bacterialcultures were isolated, from which BW2(1) was selected for the further investigation of the microbial fuelcell (MFC). The experimental results performed that the strain Bacillus alkalogaya BW2(1) was capable ofutilizing organic acids and sugars as electron donors to generate electricity. The MFC was constructed and theelectricity generation was measured after various intervals using various parameters and substrates, 937 mVelectricity was generated after 1 hour, but after 48 hours the electricity generation dramatically decreases to570 mV. The effect of pH on MFC was also studied, pH enhanced electricity, indicating the requirement ofpH for bacterium BW2(1). This is a valuable information for bioelectricity production and optimization fromB. alkalogaya BW2(1) has bright future toward the improvement and production of bioelectricity for entirelynew areas of industrial and biotechnological applications.