| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2016: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Outline of Final Research Achievements |
The low-temperature plasma sterilization have advantages for applications. However, complexity of plasma processes arises from the involvement of a myriad of species including: electrons, ions, radicals, and photons. Such plasma components are needed to be measured and analyzed for fine-tuning the process. To determine the best practice for the sterilization, plasma diagnostics were conducted on clarifying the relationship between the control parameters and the plasma parameters.
Penicillium digitatum spores, which causes green mold on citrus, are inactivated by contribution of extracellular reactive oxygen species (ROS). The stable free radical as semiquinone in the spores decreases during oxygen atom irradiation observed using real time in situ electron spin resonance (ESR). The plasma electrical discharge induce metabolic modification. Also, intracellular metabolites induce the inactivation of spores. These understanding provides the development of plasma sources.
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