Abstract
In the sterilization system by using HV impulse waveform, apple juice was sterilized with HV discharged oscillatory decay waveform. The optimal condition of impulse waveform for electrical sterilization has presented the excellent condition at 40kV cmˉ1, 4mH and over. The characteristics of this waveform shows oscillatory decay waveform with multiple pulses. And this impulse waveform was more effective to kill S. Cervisiae than exponential decay waveform. S. Cervisiae to become musty and sour for apple juice was used as the sample. This apple juice has good effect of electrical sterilization because of higher conductivity than water. Therefore this experiment can be treated sterilization without loss of vitamin C and original taste or perfume to apple juice. As a result, it is found that apple juice can be sterilized on 40kVcmˉ1, 4mH and over by using our designed HV impulse sterilizer.
Highlights
Electrical sterilization of biological cells has the advantage of conventional, chemical or thermal sterilization and has been studied by many researchers
RLC circuit with oscillating parameters, which consists of a capacitive energy storage source and a inductive pulse duration and a resistive cell suspension chamber has been widely used for a discharging network
According to our experiments results we think that this multiple pulse has the high efficiency for the same stored energy in capacitor whereas, conventional CR circuit has only single pulse is available by discharging energy stored in capacitor to treatment chamber containing cell suspension[4,5]
Summary
Electrical sterilization of biological cells has the advantage of conventional, chemical or thermal sterilization and has been studied by many researchers. RLC circuit with oscillating parameters, which consists of a capacitive energy storage source and a inductive pulse duration and a resistive cell suspension chamber has been widely used for a discharging network. RLC circuit shows multiple pulses( oscillatory decaying) are available during the charging and discharging between capacitor and inductance with chamber containing cell suspension.
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