In conclusion, UV-C light was effective in reducing Salmonella contamination on tomatoes.
The produce surface characteristics greatly influence the efficacy of the treatment.
Higher roughness of stem scar surfaces may have promoted greater adhesion and shielding of pathogens from UVC
radiation and hence the higher resistance of pathogens located in stem scar.
UV-C light was also effective in reducing Salmonella contamination on food contact surfaces.
the effectiveness of the UV treatment depends on the surface material.
Therefore, the application of UV-C light to treat tomatoes and food contact surfaces in commercial tomato
handling operations is feasible.