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Table 3 H2O2 production and IC50 values of human and vole Lactobacillus strains for bovine bile, taurocholate, and HgCl2

From: Lactobacilli with probiotic potential in the prairie vole (Microtus ochrogaster)

Strain H2O a2 Bovine bile (%)b Taurocholate (mmol/L)b HgCl2 (mmol/L)b
24 h 48 h
PV010 <0.13 7 ± 0.3 0.1 ± 0.03 0.1 ± 0.00
PV011 3.0 ± 0.9 >14 0.1 ± 0.01 0.1 ± 0.01
PV012 4.2 ± 0.3 >14 0.2 ± 0.01 0.2 ± 0.04
PV013 1.6 ± 0.1 >14 0.1 ± 0.03 0.1 ± 0.03
PV014 1.8 ± 0.8 >14 0.1 ± 0.03 0.1 ± 0.03
PV015 0.8 ± 0.4 >14 0.1 ± 0.03 0.2 ± 0.23
PV016 <0.13 7 ± 1.2 0.2 ± 0.16 0.2 ± 0.23
PV017 2.8 ± 0.6 >14 0.2 ± 0.07 0.2 ± 0.10
PV018 3.3 ± 0.7 >14 0.2 ± 0.07 0.2 ± 0.11
PV019 3.6 ± 0.7 >14 0.1 ± 0.03 0.2 ± 0.13
PV020 <0.13 >14 0.2 ± 0.22 0.2 ± 0.22
PV021 0.4 ± 0.3 14 0.1 ± 0.10 0.2 ± 0.22
PV022 0.2 ± 0.1 9 ± 2.3 0.2 ± 0.06 0.2 ± 0.24
PV023 0.2 ± 0.1 10 ± 3.5 0.1 ± 0.12 0.2 ± 0.15
PV024 1.4 ± 0.5 14 0.1 ± 0.05 0.1 ± 0.09
PV025 + <0.13 5 ± 1.2 0.1 ± 0.05 0.2 ± 0.23
PV026 <0.13 8 ± 1.2 0.2 ± 0.27 0.2 ± 0.25
PV027 <0.13 8 ± 1.7 0.1 ± 0.11 0.2 ± 0.12
PV028 <0.13 9 ± 0.3 0.1 ± 0.09 0.2 ± 0.23
PV029 <0.13 9 ± 1.7 0.2 ± 0.25 0.2 ± 0.25
PV030 + 0.2 ± 0.1 10 ± 2 0.2 ± 0.25 0.2 ± 0.26
PV031 <0.13 9 ± 0.7 0.1 ± 0.08 0.4 ± 0.23
PV032 0.13 ± 0.1 3 ± 1.6 0.3 ± 0.20 0.4 ± 0.12
PV033 0.2 ± 0.1 13 ± 1.2 0.2 ± 0.18 0.2 ± 0.10
PV034 + 0.2 ± 0.1 10 ± 1.2 0.1 ± 0.08 0.2 ± 0.11
PV035 0.3 ± 0.2 9 ± 1.0 0.3 ± 0.16 0.3 ± 0.12
PV036 <0.13 8 ± 3.9 0.1 ± 0.04 0.1 ± 0.05
PV037 + 0.2 ± 0.1 10 ± 2.3 0.1 ± 0.02 0.4 ± 0.07
PV038 <0.13 11 ± 2.6 0.2 ± 0.14 0.2 ± 0.11
PV039 0.8 ± 0.2 >14 0.1 ± 0.03 0.2 ± 0.05
Lj + 4.0 ± 0.8 >14 0.02 ± 0.0 0.02 ± 0.0
LGG 1.0 ± 0.1 >14 0.1 ± 0.04 0.2 ± 0.11
RC14 + n. d. n. d. n. d. n. d.
  1. aPurple color indicator for hydrogen peroxide production visible (+) or not visible (−) around colonies on ABTS agar
  2. bIC50 values shown indicate the concentration of inhibitor (mean of triplicate experiments ± standard deviations) that led to 50 % growth reduction. For out of-out-range values the upper or lower concentration limits tested are shown. L. johnsonii ATCC 33200 (Lj), RC14, and LGG are included as reference strains