標題: Inactivation Effect of Colletotrichum Gloeosporioides by Long-Lived Chemical Species Using Atmospheric-Pressure Corona Plasma-Activated Water
作者: Wu, Mu-Chien
Liu, Chih-Tung
Chiang, Chun-Yi
Lin, Yi-Jia
Lin, Ying-Hong
Chang, Yao-Wen
Wu, Jong-Shinn
機械工程學系
Department of Mechanical Engineering
關鍵字: Antifungal activity;atmospheric-pressure plasma jet;colletotrichum gloeosporioides (C. gloeosporioides);indirect interaction;plasma activated water (PAW);reactive nitrogen and oxygen species
公開日期: 1-Feb-2019
摘要: In this paper, atmospheric-pressure air and oxygen corona plasma jets under water surface have been used to generate plasma-activated water (PAW) to inactivate colletotrichum gloeosporioides (C. gloeosporioides) suspension. The atmospheric-pressure plasma jets in the water were characterized by measuring: 1) the electrical and optical properties for evaluating the plasma efficiency and 2) the physicochemical properties of PAW, including pH value, oxidation-reduction potential value, and the concentration of hydrogen peroxide, nitrite, and ozone. The aim of this paper is to investigate the effects of long-lived reactive oxygen and nitrogen species (RONS) and environmental factor (acidity) in PAW on fungicidal property. The results of antifungal activity show that the inactivation rate of C. gloeosporioides is higher using air-PAW than oxygen-PAW, and increases with increasing reaction time when preparation time of PAW is fixed as 30 min. This correlates well with measurements of the aqueous-phase long-lived RONS concentration such as nitrate and ozone, suggesting these species play crucial roles in the inactivation process.
URI: http://dx.doi.org/10.1109/TPS.2018.2871856
http://hdl.handle.net/11536/148842
ISSN: 0093-3813
DOI: 10.1109/TPS.2018.2871856
期刊: IEEE TRANSACTIONS ON PLASMA SCIENCE
Volume: 47
起始頁: 1100
結束頁: 1104
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