家庭冰箱的细菌组成和空气中的黄金葡萄球菌的灭活使用TiO
So-Seum Yong1, Jae-Ik Lee1, Dong-Hyun Kang2
1Department of Food and Animal Biotechnology, Department of Agricultural Biotechnology, Center for Food and Bioconvergence, Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
家用冰箱含有空气和表面细菌,包括危险的金黄色葡萄球菌. 一个二氧化 (TiO2) 和UV-LED模块有效地使气溶中的金黄色细菌失活,显示了用于冰箱空气净化的潜力.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 家庭冰箱可以在表面和空气中容纳各种微生物群落.
- 识别空气传播的病原体,如金黄色葡萄球菌对于食品安全和公共卫生至关重要.
- 现有的控制冰箱微生物群的方法可能有限.
研究的目的:
- 为了研究家用冰箱的空气和表面微生物群.
- 为了评估二氧化 (TiO2) 和紫外线发光二极管 (UV-LED) 模块在激活空气溶液中黄金葡萄球菌的有效性.
- 确定TiO2-UV-LED技术在控制冰箱中的空气传播细菌方面的潜力.
主要方法:
- 从七台家用冰箱收集了空气和表面样本.
- 微生物群分析包括对有氧和无氧细菌的定量评估.
- 在空气生物室中使用TiO2-UV-LED模块进行了空气溶液中黄金葡萄球菌菌株的无活化.
主要成果:
- 检测到大量的空气 (4.26 log CFU/100 L) 和表面 (5.27 log CFU/5000 cm2) 的有氧细菌.
- 在带有或没有蔬菜抽的冰箱之间,细菌成分各不相同.
- 确定了包括葡萄球菌在内的致病性属;金黄色葡萄球菌是空气中传播的核心病原体.
- 在TiO2-UV-LED处理下,在40J/cm2时,气溶液中的金黄色菌减少了超过1.6 log CFU/体积.
结论:
- 家用冰箱承载着大量的细菌,包括致病性黄金葡萄球菌 (Staphylococcus aureus).
- TiO2-UV-LED技术在禁用空气中传播的金黄色葡萄球菌方面表现出有效性.
- 这项技术有望改善家用冰箱内的空气质量和微生物控制.
更多相关视频
07:07Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes
Published on: April 7, 2017
14:17The Portable Chemical Sterilizer PCS, D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
Published on: June 29, 2014
相关概念视频
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
Chemical Agents for Microbial Control
Methods of Sterilization II: Chemical Methods
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Physical Methods for Controlling Microbial Growth: Temperature
Cleaning, Sterilization, and Disinfection
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Methods of Sterilization I: Physical Methods
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
