Figure 6From: Synergistic activity and mechanism of action of Stephania suberosa Forman extract and ampicillin combination against ampicillin-resistant Staphylococcus aureusThe inhibitory activity of SSE against β-lactamase type IV from E. cloacae in hydrolyzing benzylpenicillin; Con = control (no testing agent); SSE(1) = SSE at 1 mg/ml. The graph shows the remaining benzylpenicillin at the same time. Means sharing the same superscript are not significantly different from each other (Tukey's HSD, p < 0.01).Back to article page