Figure 3.

Lp and HPC log reductions using the UV-C LED POE device. Data represent the mean ± SD_LR log₁₀ CFU mL⁻¹ reductions in Lp sg 1 (white bars), sg 1 DW isolate (light grey bars), sg 4 (dark grey bars), and sg 6 (black bars) and the reduction in HPC levels in the drinking water source during each of the Lp strain experimental runs. SD_LR was calculated as described in Section 2.6. Data are representative of five replicates for each strain. Statistical significance when compared to all other strains is denoted as ** for p < 0.001. See Supplemental Materials Table S2.