Abstract
Recently, the applications in biotechnological and medical fields using nonequilbrium atmospheric pressure-plasmas (NEAPPs) have been intensively studied. The inactivation of microorganisms using NEAPPs has been attracted much attention due to the low temperature processing and high speed treatment. We inactivated Penicillium digitatum spores using an atmospheric pressure plasma in gas phase and focused on the effects of neutral oxygen radicals on the inactivation using an atmospheric-pressure oxygen radical source, which selectively supplies neutral oxygen radical species without charged species and UV radiation. We measured the densities of the neutral oxygen radicals, such as ground-state atomic oxygen (O(3Pj)) and singlet oxygen molecule (O2(1Δg)), using a vacuum ultraviolet spectroscopy system, and inactivated P. digitatum spores quantitatively. 3 The inactivation efficiencies corresponded to the O(3Pj) density. Therefore, we found quantitatively that O(3Pj) was the dominant factor responsible for inactivating P. digitatum spores.1
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
