Predicting Inactivation of Bacillus subtilis Spores Exposed to Broadband and Solar Ultraviolet Light.

ABSTRACT: This study develops general predictive models for the ultraviolet (UV) radiation dose-response behavior of Bacillus subtilis spores to solar UV irradiation that occurs in the environment and broadband UV irradiation used in water disinfection systems. The approach is demonstrated using previously obtained experimental survival rates for B. subtilis spores deposited on dry surfaces as well as in water and exposed to both narrow band UV radiation as well as broadband UV irradiation from solar exposure and disinfectant lamps. Results are modeled to derive predicted survival rates for spores as a function of irradiance intensity and wavelength, capability for repair, and depletion of available sites for UV damage. The essential features of the approach are expression of the inact

SUBMITTER: Handler FA 

PROVIDER: S-EPMC6588126 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature