From: Simultaneous determination of brazilin and protosappanin B in Caesalpinia sappan by ionic-liquid dispersive liquid-phase microextraction method combined with HPLC
MIC
Concentration
Bacteria
SA
MRSA
β-Lactamase producing S. aureus
Ionic liquid extract
mg crude drug/mL
37.5
18.8
Methanol extract
75.0
150.0
Brazilin
mg/mL
2.5
Streptomycin
0.06
0.5
0.03