Penicillium expansum (blue mould)
Rios de Souza et al. 2019 · 277 nm
Test conditions & context
Type Mold spore (conidia)
Medium Surface
Test wavelength 277 nm
Particle size 3000 nm
Author Rios de Souza et al.
Year 2019
UV-C dose–response (D-values)
A D-value is the UV-C dose (in mJ/cm²) needed for a given log-reduction. D90 = 90 % inactivation = 1-log; D99 = 99 % = 2-log; D99.9 = 99.9 % = 3-log, and so on. Values come from the cited study under its specific test conditions.
Reduction log Dose (mJ/cm²)
D90 90 % 1-log 33.5 mJ/cm²
Morphology & UV-C resistance
Morphology class Mold spore (conidia)
Conidial spore with moderate pigmentation. Building/equipment reservoir.
Primary source
Rios de Souza et al. (2019). doi.org/10.1016/j.foodcont.2019.107039