Effect of feed gas composition of gas discharge plasmas on Bacillus pumilus spore mortality
作者： D. Purevdorj , N. Igura , O. Ariyada , I. Hayakawa
DOI: 10.1046/J.1472-765X.2003.01341.X
关键词:
摘要: Aims: To investigate the effect of gas composition on sensitivity Bacillus pumilus spores to plasmas. Methods and Results: Inert plasmas, oxygen-based plasmas various moisturized air were used inactivate B. in low pressure 50 Pa. Although treatment temperature did not exceed 55°C when exciting these spore survival varied widely depending feed. Higher mortality was acquired by inert gases molecular weight except for helium. The highest (4·54log reduction) obtained with a 0·05 molar fraction water vapour as plasma carrier gas. Conclusions: Water molecules play significant role inactivation spores. Significance Impact Study: This strong may occur through hydroxyl free radicals generated from plasma.
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P. Koulik, S. Begounov, S. Goloviatinskii, Atmospheric Plasma Sterilization and Deodorization of Dielectric Surfaces Plasma Chemistry and Plasma Processing. ,vol. 19, pp. 311- 326 ,(1999) , 10.1023/A:1021604027855
William A. Rutala, Maria F. Gergen, David J. Weber, Comparative evaluation of the sporicidal activity of new low-temperature sterilization technologies: Ethylene oxide, 2 plasma sterilization systems, and liquid peracetic acid American Journal of Infection Control. ,vol. 26, pp. 393- 398 ,(1998) , 10.1016/S0196-6553(98)70034-3
S. Lerouge, M. R. Wertheimer, R. Marchand, M. Tabrizian, L'H. Yahia, Effect of gas composition on spore mortality and etching during low-pressure plasma sterilization. Journal of Biomedical Materials Research. ,vol. 51, pp. 128- 135 ,(2000) , 10.1002/(SICI)1097-4636(200007)51:1<128::AID-JBM17>3.0.CO;2-#
Charles L. Nelson, Thomas J. Berger, Inactivation of Microorganisms by Oxygen Gas Plasma Current Microbiology. ,vol. 18, pp. 275- 276 ,(1989) , 10.1007/BF01570305
C Hogstedt, O Rohlen, B S Berndtsson, O Axelson, L Ehrenberg, A cohort study of mortality and cancer incidence in ethylene oxide production workers. Occupational and Environmental Medicine. ,vol. 36, pp. 276- 280 ,(1979) , 10.1136/OEM.36.4.276
Dambadarjaa Purevdorj, Noriyuki Igura, Isao Hayakawa, Osamu Ariyada, Inactivation of Escherichia coli by microwave induced low temperature argon plasma treatments Journal of Food Engineering. ,vol. 53, pp. 341- 346 ,(2002) , 10.1016/S0260-8774(01)00174-1
D. Purevdorj, N. Igura, M. Shimoda, O. Ariyada, I. Hayakawa, Kinetics of Inactivation of Bacillus Spores Using Low Temperature Argon Plasma at Different Microwave Power Densities Acta Biotechnologica. ,vol. 21, pp. 333- 342 ,(2001) , 10.1002/1521-3846(200111)21:4<333::AID-ABIO333>3.0.CO;2-6
I. Ishigaki, F. Yoshii, Radiation effects on polymer materials in radiation sterilization of medical supplies International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry. ,vol. 39, pp. 527- 533 ,(1992) , 10.1016/1359-0197(92)90108-R
H. W. Herrmann, I. Henins, J. Park, G. S. Selwyn, Decontamination of chemical and biological warfare (CBW) agents using an atmospheric pressure plasma jet (APPJ) Physics of Plasmas. ,vol. 6, pp. 2284- 2289 ,(1999) , 10.1063/1.873480
Hury, Vidal, Desor, Pelletier, Lagarde, A parametric study of the destruction efficiency of Bacillus spores in low pressure oxygen‐based plasmas Letters in Applied Microbiology. ,vol. 26, pp. 417- 421 ,(1998) , 10.1046/J.1472-765X.1998.00365.X