Figure 4.

Time‐kill curves of compounds against NDM‐positive isolates. Mid‐logarithmic‐phase bacteria were diluted to 1 × 10⁵ CFU·ml⁻¹ in LB medium and incubated in meropenem with or without 32 μg·ml⁻¹ pterostilbene for 0, 1, 3, 5, 7, 9, and 11 hr. Samples were plated onto agar plates for bacterial counts. After overnight culture, surviving colonies were counted. All data are mean ± SD, n = 5. Mep, meropenem; Pt, pterostilbene