Figure 5.

(a,b) Kill kinetics of MRSA-3 and MRSA-5 strains, respectively, exposed to 200 mM H₂O₂ and pretreated with either Aphanamixis polystachya or Melia azedarach extracts within 120 min. Data represent the means of the viable colonies recovered at each time point ± SD, n = 3. (c) Inhibition of catalase enzyme activity in cells pretreated with either Aphanamixis polystachya or Melia azedarach extracts. Data represent the means of the height of the observed O₂ froth that remained constant for 15 min ± SD, n = 3. One-way ANOVA, followed by Tukey’s multiple comparisons, p-value < 0.0001). (*) Indicates presence of a statistically significant difference between columns.