E. coli
Knobling et al. 2023 · 279 nm
Test conditions & context
Type Bacterium (vegetative)
Medium Surface
Test wavelength 279 nm
Particle size 1500 nm
Author Knobling et al.
Year 2023
Edelstahl-Coupon (ATCC 25922), UV-LED 279 nm — geringere UV-Empfindlichkeit als S. Typhimurium derselben Studie
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 3.8 mJ/cm²
D99 99 % 2-log 7.6 mJ/cm²
D99.9 99.9 % 3-log 11.4 mJ/cm²
Primary source
Knobling et al. (2023). doi.org/10.3389/frfst.2023.1182765