High efficiency sterilizer by high voltage pulse using concentrated field electrode system

The serilization method of microoganisms in liquid food using pulsed electric field has been reported by some researchers. Considering application to the food industry, energy efficiency of the method becomes important. The authors developed a new electrode system for concentrating the electric field in liquid food medium. The new electrode configuration made it possible to raise the energy efficiency for the pulsed sterilization process than that for conventional parallel plane or concentric cylinder electrode systems.