气态臭氧灭活陶瓷和瓷片上的萎缩性芽孢杆菌孢子

IF 2.5 4区 化学 Q3 CHEMISTRY, ANALYTICAL Journal of Analytical Science and Technology Pub Date : 2024-07-31 DOI:10.1186/s40543-024-00456-y
Dokyung Kwon, Yongju Jo, Youngku Sohn, Jeongkwon Kim
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引用次数: 0

摘要

本研究调查了附着在不同瓷砖表面的萎缩芽孢杆菌孢子的臭氧灭活效率。我们采用了八种不同类型的瓷砖,考虑了瓷砖的孔隙率(陶质、瓷质)、颜色(白色、黑色)和光泽度(亚光、亮光)等因素。灭活方法是将装有孢子的瓷砖暴露在臭氧气体中一段时间。通过分析在生长培养基中培养的脱附萎缩芽孢杆菌的菌落形成单位,比较了臭氧气体对不同瓷砖表面的灭活效率。结果表明,随着臭氧暴露时间的延长,菌落数减少,这表明臭氧暴露时间成比例地提高了灭活效率。在臭氧气体中暴露 30 分钟或更长时间后,每块瓷砖上 90% 以上的孢子被灭活。在孔隙率方面,陶瓷砖的灭活效果略优于瓷质砖。此外,就光泽度而言,光面瓷砖的灭活效果优于哑光瓷砖。不过,根据瓷砖颜色的不同,灭活效果也没有明显差异。
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Gaseous ozone inactivation of Bacillus atrophaeus spores on ceramic and porcelain tiles
In this study, we investigated the ozone inactivation efficiency of Bacillus atrophaeus spores attached to various tile surfaces. Eight different types of tiles were employed, considering factors such as porosity (ceramic, porcelain), color (white, black), and glossiness (matte, glossy). Inactivation was performed by exposing the spore-loaded tiles to ozone gas for a specified duration. The inactivation efficiencies of ozone gas on different tile surfaces were compared by analyzing the colony-forming units of desorbed Bacillus atrophaeus cultured in a growth medium. Results revealed a reduction in colony counts with increasing ozone exposure time, indicating a proportional enhancement in inactivation effectiveness on ozone exposure time. After exposure to ozone gas for 30 min or longer, more than 90% of spores on each tile were inactivated. Regarding porosity, ceramic tiles exhibited slightly superior inactivation effects compared to porcelain tiles. Additionally, in terms of glossiness, glossy tiles demonstrated better inactivation effects than matte tiles. However, no significant differences were observed in inactivation effects based on the color of the tiles.
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来源期刊
Journal of Analytical Science and Technology
Journal of Analytical Science and Technology Environmental Science-General Environmental Science
CiteScore
4.00
自引率
4.20%
发文量
39
审稿时长
13 weeks
期刊介绍: The Journal of Analytical Science and Technology (JAST) is a fully open access peer-reviewed scientific journal published under the brand SpringerOpen. JAST was launched by Korea Basic Science Institute in 2010. JAST publishes original research and review articles on all aspects of analytical principles, techniques, methods, procedures, and equipment. JAST’s vision is to be an internationally influential and widely read analytical science journal. Our mission is to inform and stimulate researchers to make significant professional achievements in science. We aim to provide scientists, researchers, and students worldwide with unlimited access to the latest advances of the analytical sciences.
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