This
study revealed the bactericidal activities of all the P. betle leaf crude extracts on methicillin resistant
Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE),
extended spectrum β-lactamase-producing Enterobacteriaceae, carbapenem-resistant
Enterobacteriaceae, and metallo-β-lactamase-producing Pseudomonas aeruginosa and Acinetobacter
baumannii, with minimum bactericidal concentrations that ranged from 19μg/ml to
1250 μg/