Acoustic impact on electric discharge parameters during sterilization of freeze-dried products

The possibility of using a gas discharge plasma for sterilization of freeze-drying products directly in the process of their vacuum packaging for long-term storage is considered. An alternating current electrical discharge was used as a source of sterilizing action. In order to increase the homogene...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-11, Vol.1370 (1), p.12016
Main Authors: Ya Asadullin, T, Galeev, I G, Sofronitskiy, A O, Gizeev, M M
Format: Article
Language:English
Subjects:
Acoustic frequencies
Electric discharges
Freeze drying
Gas discharges
Homogeneity
Physics
Sound waves
Sterilization
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Summary:The possibility of using a gas discharge plasma for sterilization of freeze-drying products directly in the process of their vacuum packaging for long-term storage is considered. An alternating current electrical discharge was used as a source of sterilizing action. In order to increase the homogeneity of the processing of the products, sound waves were applied to the electrical discharge. The effect of acoustic effects was investigated in the pressure range from 10 to 100 Torr, and the sound frequency from 50 to 400 Hz. A noticeable effect of sound waves on the discharge behavior was identified and optimal conditions were determined for increasing the uniformity of the sterilizing effect on the processed products.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1370/1/012016