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为研究高功率微波对细菌的杀灭效果及其可能存在的非热效应。采用频率2450MHz，功率0～3kw的连续高功率微波，对干湿状态的细菌进行不同强度及时间的辐照，比较其杀灭率，并同时与单纯的加热灭菌相对比，研究高功率微波对细菌的杀灭规律。结果显示：不同强度及拍照时间的微波对干菌作用后，其温度无显著变化，但活菌显著减少（P＜0．05）；对湿菌的杀灭效果则显著高于干菌，而单纯加热灭菌率则低于微波对湿菌的杀灭。提示微波对湿菌的杀灭强于单纯的加热干菌，且可杀灭干菌，说明微波对细菌的杀灭除热效应外还有非热效应。
To study the killing effect of high power microwave on bacteria and its possible non-thermal effect. Using continuous high-power microwave with frequency of 2450MHz and power of 0 ~ 3kw, the bacteria in different wet and dry conditions were irradiated with different intensity and time, and their killing rates were compared. At the same time, compared with simple heating and sterilization, high power microwave Bacteria kill the law. The results showed that there was no significant change in the temperature of the dry bacteria, but the number of viable cells was significantly decreased (P <0.05). The killing effect on wet bacteria was significantly higher than that of the dry bacteria Simple heat sterilization rate is lower than the microwave kill wet bacteria. Tip microwave kill wet bacteria stronger than the simple heat dry bacteria, and can kill dry bacteria, indicating that the killing of bacteria in addition to microwave sterilization heat effect in addition to non-thermal effects.