Helicobacter pylori is a common gastrointestinal pathogen, which is mainly transmitted through the oral-oral or faecal-oral route. In order to control the spread of this bacteria, especially on the tableware disinfection is very important. Ultraviolet (UV) disinfection is a common bactericidal method, and whether it is effective in killing H. pylori depends on several factors, including the intensity of the ultraviolet light, the wavelength, the exposure time, and the location of the bacteria.
The principle of ultraviolet disinfection
Ultraviolet disinfection uses ultraviolet light in the UVC band (200-280 nm) to destroy the DNA and RNA of microorganisms, inhibit their reproduction and survival, so as to achieve bactericidal effects. The common ultraviolet wavelength used for disinfection is 254 nm.
The effectiveness of ultraviolet light against Helicobacter pylori
1. Experimental studies: Studies have shown that UVC can effectively kill a variety of bacteria and viruses, including Helicobacter pylori. In laboratory conditions, appropriate doses of UVC irradiation can significantly reduce the number of H. pylori bacteria.
2. Dose requirements: The UV dose required to kill Helicobacter pylori depends on the concentration of the bacteria and the intensity and time of UV exposure. Usually, a few minutes of high intensity ultraviolet radiation can achieve a significant bactericidal effect.
Considerations in practical applications
1. Irradiation of the covering surface: ultraviolet rays need to be directly exposed to microorganisms in order to effectively kill bacteria. Therefore, every surface of the tableware needs to be fully exposed to ultraviolet light. If there are occluded or shaded areas on the tableware surface, it may cause some bacteria to survive.
2. Cleanliness: Tableware needs to be thoroughly cleaned before ultraviolet disinfection to remove organic matter and dirt, because these substances will block ultraviolet light and reduce the disinfection effect.
3. Disinfection equipment: The use of appropriately designed ultraviolet disinfection equipment, such as ultraviolet disinfection cabinets or ultraviolet lamps, can ensure sufficient ultraviolet intensity and uniform irradiation.
Conclusion
Ultraviolet disinfection can effectively kill Helicobacter pylori on tableware, but the following points need to be noted:
· Use a UVC light source of the appropriate wavelength and intensity.
· Ensure that UV rays reach all surfaces of the tableware.
· Clean utensils thoroughly before disinfecting to remove any dirt or organic matter that may block UV rays.
By following these steps, UV disinfection can be an effective way to control the spread of H. pylori.
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Shenzhen Hechuang Hitech CO., LTD. is a National High-tech Enterprise, which has won a number of invention patent technology awards. We focuses on the Research, Development, Production and Application of INNEST UVC-LED Technology. It adopts innovative technologies of revolutionary optics and fluid science, which can kill bacteria and viruses in 0.2 seconds, with a sterilization rate of 99.999%. Hechuang Hitech provides safer, more efficient and more humanized sterilization module design for Water Air and Surface Disinfection products.
