. 2000 Oct;66(10):4187–4192. doi: 10.1128/aem.66.10.4187-4192.2000

TABLE 5.

NADH peroxidase activity in various Lactobacillus strains grown in MRS broth at 30°C in the presence or absence of hydrogen peroxide (0.75 mmol/liter)

Organism	Mean sp act (μmol of NADH oxidized/min/mg of total protein)^a ± SD
Organism	No hydrogen peroxide (control)	Hydrogen peroxide (0.75 mM) added	No hydrogen peroxide^b
L. plantarum	0.143 ± 0.012^C	0.233 ± 0.031^A	0.159 ± 0.018^B
L. paracasei	0.093 ± 0.020^C	0.241 ± 0.023^A	0.119 ± 0.031^B
Lactobacillus sp. strain 3	0.217 ± 0.012^C	0.324 ± 0.021^A	0.215 ± 0.030^B
L. rhamnosus	0.051 ± 0.029^C	0.347 ± 0.018^A	0.104 ± 0.007^B
L. fermentum	0.062 ± 0.003^C	0.149 ± 0.021^A	0.052 ± 0.009^B

The values given are the mean of three separate analyses ± the standard deviation. The superscript capital letters indicate the levels of significance (P = 0.05) between treatments and not between organisms (based on Duncan's multiple range test).

In this case, cells were grown in MRS broth containing 0.75 mM H₂O₂ until late log phase and then transferred to fresh media for ∼18 h to stationary phase without hydrogen peroxide.