Fig. 4.

ARB protective response against the alkylation damage of MMS in the antimutagenicity assay for the S.Typhimurium strain TA100. Different from the positive control (one-way ANOVA followed by Tukey’s post hoc test; *p <0.01, **p <0.001, ***p = 0.001, ****p <0.0001; n=3). Pre- (a), post- (b) and co- (c) incubation of ARB with the mutagen MMS (methyl methanesulfonate, “pos ctrl”, 250 µg/plate). His⁺: revertant colonies. ns: not statistically different from the untreated or positive controls. Reduction percentages are indicated along with the corresponding concentration.