Figure 3.
(a) Congo red agar medium showing black colonies production with strains MRSA-3 and MRSA-5 only, indicating positive slime production. Pink colonies indicate negative slime production. (b) Percentage inhibition of biofilm formation and (c) percentage disruption of preformed biofilm formed by MRSA-3 and -5 strains by Aphanamixis polystachya and Melia azedarach extracts at concentration of 0.125 mg mL−1. Data represent the means of percentage biofilm inhibition/disruption ± SD, n = 3 (one-way ANOVA, followed by Tukey’s multiple comparisons, p-value < 0.05). (*) Indicates presence of a statistically significant difference between columns.