Effect of Water-Surface Discharge on the Inactivation of Bacillus subtilis Due to Protein Lysis and DNA Damage
スポンサーリンク
概要
- 論文の詳細を見る
The effect of water-surface discharge on the inactivation of Bacillus subtilis ATCC6633 in water was examined by using a very short high-voltage pulse generator. The surviving number of spore cells at 104 CFU/ml in initial concentration exponentially decreased with increasing discharge-treatment time. The input energy into the water-surface discharge under an O2 gas flow for reduction in the survival number to 10% was lower than that under an air flow because many oxidation agents such as ozone and OH radical were produced under the O2 gas flow. The input energy density for the one-tenth reduction depended not only on the spore state but also on the initial cell concentration. The input energy for the high-concentration spore cells (107 CFU/ml) was much higher than that for the low-concentration spore cells (104 CFU/ml). Cellular proteins and DNA were degraded by a 30-min discharge treatment of vegetative cells, whereas DNA of the high-concentration spore cells was relatively resistant.
- 社団法人 日本農芸化学会の論文
- 2009-09-23
著者
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Kadowaki Kazunori
Graduate School of Science and Engineering, Department of Electrical and Electronic Engineering and
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Sone Toshifumi
Graduate School of Science and Engineering, Department of Electrical and Electronic Engineering and
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Kamikozawa Takashi
Graduate School of Science and Engineering, Department of Electrical and Electronic Engineering and
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TAKASU Hiroyuki
Center for Marine Environmental Studies, Ehime University
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SUZUKI Satoru
Center for Marine Environmental Studies, Ehime University
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Kadowaki Kazunori
Graduate School Of Science And Engineering Department Of Electrical And Electronic Engineering And C
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Takasu Hiroyuki
Center For Marine Environmental Studies Ehime University
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Sone Toshifumi
Graduate School Of Science And Engineering Department Of Electrical And Electronic Engineering And C
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Suzuki Satoru
Center For Marine Environmental Studies Ehime University
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Takasu Hiroyuki
Center For Marine Environmental Studies (cmes) Ehime University
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Kamikozawa Takashi
Graduate School Of Science And Engineering Department Of Electrical And Electronic Engineering And C
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Suzuki Satoru
Center For Marine Environmental Studies (cmes) Ehime University
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Kadowaki Kazunori
Graduate School Of Sci. And Engineering Ehime Univ.
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