2012 年 55 巻 8 号 p. 389-394
We have been investigating an advanced sterilization system that uses active oxygen species (AOS). We used sterilization equipment that generates AOS from pure oxygen gas by using ultraviolet irradiation and an evacuation system to study the conditions necessary for oxygen injection into the system's chamber. In this way, we optimized the operating conditions for oxygen regulation. Through scanning electron microscope observations, we characterized the mechanism by which AOS inactivated spore-forming bacteria such as Bacillus subtilis.