The efficacy of UV-C light in decreasing Salmonella contaminated food contact surfaces (stainless steel,HDPE, waxed cardboard, and PVC).
UV exposure for 5 s (3.3 mJ/cm2) significantly reduced Salmonella populations on all food contact surfaces Salmonella log reduction inwaxed
cardboard was not as great as that on other coupons. Significant differences were also observed between the 30 s of UV treatment and the controls
When comparing the results of coupons treated for 5 s and 30 s of UV, coupons exposed for longer time had greater Salmonella population
reductions. Regardless of 5 s or 30 s of UV radiation, Salmonella populations decreased the least on waxed cardboard.