Dual-wavelength 222 nm/405 nm light-based disinfection system: experimental and field studies of its effectiveness at enhancing food safety

Food safety is a major concern due to the health risks and economic impact of foodborne disease outbreaks. Traditional decontamination methods have limitations, such as chemical safety concerns and high energy costs. Far-UVC (222 nm) light has emerged as a promising disinfection technology, offering strong antimicrobial properties while being safe for human exposure. A compact 222 nm/405 nm disinfection system was developed and its decontamination performance was evaluated. Specifically, it integrates a microplasma lamp with LED arrays, optimizing light intensity and spatial configuration for maximum efficacy. Field trials confirmed its effectiveness in real-world food-processing settings, demonstrating its potential to enhance food safety while minimizing operational disruptions.