Estimation of liquid sterilization using critical voltage under high electric field pulses

Our article compared the survival ratio obtained using experiments with that calculated using a sterilization mechanism model. We applied high‐voltage pulses to Escherichia coli in 1 × 10 −3 mol/l NaCl aqueous solutions and estimated the survival ratio in a model of high electric field pulse sterilization. The results show that the survival ratios of E. coli decrease with increasing number of pulses, electric field intensity, pulse width, and sample temperature. The experimental results for the survival ratio showed good agreement with values calculated using the sterilization mechanism model. Our study shows that the survival ratio of E. coli can be estimated using high electric field pulses. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.