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Efficacy Of Ultraviolet (Uv-C) Light In Reducing Foodborne Pathogens And Model Viruses In Skim Milk, Danielle M. Gunter-Ward, Ankit Patras, Manreet Singh Bhullar, Agnes Kilonzo-Nthenge, Bharat Pokharel, Michael Sasges
Efficacy Of Ultraviolet (Uv-C) Light In Reducing Foodborne Pathogens And Model Viruses In Skim Milk, Danielle M. Gunter-Ward, Ankit Patras, Manreet Singh Bhullar, Agnes Kilonzo-Nthenge, Bharat Pokharel, Michael Sasges
Agricultural and Environmental Sciences Faculty Research
The efficacy of low wavelength ultraviolet light (UV-C) as a disinfection process for a scattering fluid such as skim milk was investigated in this study. UV-C inactivation kinetics of two surrogate viruses (bacteriophages MS2 and T1UV) and three bacteria Escherichia coli ATCC 25922, S. Typhimurium ATCC 13311, Listeria monocytogenes ATCC 19115 in buffer and skim milk were investigated. UV-C irradiation was applied to stirred samples, using a collimated beam operating at 253.7 nm wavelength. A series of known UV-C doses (0–40 mJ·cm−2) were delivered to the samples except MS2 where higher doses (0–150 mJ·cm−2) were delivered. …