A disc diffusion assay was used to estimate the anti-H.
pylori activities of LPS16 cell and supernatant. Results
showed that bacterial cells alone had no inhibition zone on
H. pylori ATCC43505 and J99 (Fig. 1A), whereas concentrated
cell-free supernatant of LPS16 and concentrated
MRS showed inhibition zones (Fig. 1B). Concentrated cellfree
supernatant of LPS16 produced significantly larger
zones than concentrated MRS did (one-way ANOVA with
Bonferroni post test, p < 0.01).