FIG. 2.

MBC_nitrite with or without the presence of other physiologically active compounds against Y. enterocolitica at pH 2. Values out of range (i.e., an MBC of >1,000 μM) were included in analysis after assuming an arbitrary value of 1,000 μM, as shown by bars corresponding to high concentrations of vitamin C and glutathione. Error bars show the standard errors of the means, and the different letters indicate significantly different values for the means (P < 0.05, Duncan's multiple range test). Vitamin C and glutathione showed an overall increase in MBC_nitrite, whereas iodide and thiocyanate showed reduced MBCs.