绿脓杆菌静电灭菌法初试

TRIAL OF STERILIZATION OF PSEUDOMONAS AERUGINOSA BY ELECTROSTATIC METHOD

Destruction of Pseudomonas aeruginosa under room temperature has been performed by high electrostatic voltage.Three different electrode geometries(star shape wire-plate,needles- plate and plate-plate)and varied forms of voltage such as positive high voltage,negative high voltage,positive pulse voltage,negative pulse voltage and alternative voltage were tested.The survival rate of Pseudomonas aeruginosa measured against voltage,corona power and the time of treatment.The experimental results indicate that Pseudomonas aeruginosa can be destroyed com- pletely by corona discharge field when proper conditions are chosen.The influence of voltage waveform and electrode geometries on the sterilization effect was also studied.The electrostatic method is a novel one.No paper describing the sterilization of bacteria in non-liquid by electrosta tic method has been reported up to now.Though further studies are necessary,these results indi- cate a possibility of bacteria destruction by high electrostatic voltage application to be used as steri lization process.