E-41 マイクロ波による空調用気化式加湿器の殺菌性能に関する研究(その1) : 電子レンジを用いたマイクロ波による微生物殺菌効果の基礎実験

概要

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In this study, we measured sterilization effect on the fungal spores Cladosporium herbarum and Fusarium solani as well as bacteria Bacillus subtilis using microwave oven. Three microwave powers (100W, 500W and 1000W) and five exposure time-steps (5sec, 1Osec, 20sec, 40sec and 60sec) were tested to find the most effective parameters of radiation which could be applied to humidifier filter in air conditioning system. The results showed that the degradation of studied microorganisms differed depending on their strains, power of microwave radiation and time of exposure. The responses of three strains from microwave radiation could be ranked in the following order of sensitivity: B. subtilis >C. herbarum >F. solani. The effect of microwave radiation for three strains were degraded more than 99% at 1000W of microwave power with more than 20sec. These results indicate that sterilization of microwave radiation for this study is potential tool for the control of contamination of harmful microorganisms to humidifier filter in air conditioning system.
社団法人空気調和・衛生工学会の論文
2010-08-12