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10 Reasons Why Pulsed Light Is Selected as an Antimicrobial Process

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By: DAVID SAVASTANO

Contributing Editor, Coatings World and Ink World, Coatings World and Ink World Magazine

#1- Powerful Sterilization Agent
Due to high peak power pulses, > 1 kW/cm 2 , and broad spectrum, 100 – 1100 nm, pulsed ultraviolet (UV) light technology is effective in the treatment of all known virus, bacteria and fungi. Pulsed light is a rapid physical process, that causes a molecular rearrangement of the genetic material, known as the DNA, of the microorganism. The effects of pulsed UV light on microbial cells can be classified as photochemical (e.g. thymine-thymine dimer formation in microbial DNA), photothermal (localized heating of bacteria), and photophysical (constant disturbance caused by the high energy pulses) effects. Because it kills DNA and inactivates microorganisms, including fungal yeasts and molds, rickettsiae, and mycoplasma, it is classified as a sterilization agent.
#2- Environmentally Friendly
Pulsed light surface disinfection process is nonthermal, dry and without chemicals. It is a viable alternative to thermal or harsh chemical processing. It does not produce byproducts, toxins, or volatile organic compound emissions. Flashlamps are mercury-free and do not pose a hazard to workers in the event of breakage.
#3- Approved for Use with Food Processing
In 1996, the U.S. Food and Drug Administration (FDA) 2 concluded there are no human safety concerns associated with the sale of food treated by pulsed light during the production, processing and handling of foods.DOWNLOAD TO LEARN MORE

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