| 摘要 |
An aseptization apparatus 1 includes a sealed container 11 forming an aseptization space 191, a nitrogen gas supplying system 12 for converting atmosphere of the aseptization space 191 into nitrogen atmosphere, an electrode pair 13 disposed in the aseptization space 191, a pulse power supply 14 for repeatedly applying an electric pulse to the electrode pair 13, and a mirror 15 for returning a short-wavelength ultraviolet ray going from inside of the aseptization space 191 to outside to inside of the aseptization space 191. In a state where an aseptization object substance ST1 is present in a plasma generation region 192 between the electrode pair 13, the aseptization apparatus 1 causes a pulse electric field generated by electric pulse application to the electrode pair 13, a nitrogen radical 195 contained in plasma generated in nitrogen atmosphere resulting from fine streamer discharge, and a short-wavelength ultraviolet ray 196 emitted by nitrogen atmosphere resulting from fine streamer discharge to act on bacteria for aseptization of the aseptization object substance ST1.
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