Energy Sources Part A-recovery Utilization and Environmental Effects, Vol.39, No.4, 433-440, 2017
Production of bioelectricity in MFC by Pseudomonas fragi DRR-2 (psychrophilic) isolated from goat rumen fluid
This study focused on bioelectricity production by Pseudomonas fragi DRR-2, a psychrophilic Gram-negative bacterium isolated from rumen fluid. The experiments were conducted at four different temperatures, namely 4 degrees C, 10 degrees C, 20 degrees C, and room temperature (around 30 degrees C) at neutral pH. The maximum voltage of 510 mV was obtained on the 10th day at 20 degrees C, 320 mV at 10 degrees C, and 250 mV at 4 degrees C, respectively. The redox potential from cyclic voltammograms confirmed that the bacterium is electrochemically active. Based on the results, it was observed that P. fragi produced more electricity at 20 degrees C. This is the first-hand information of power production by P. fragi at low temperatures.