Evidence-Based Complementary and Alternative Medicine

Research Article

Chemical Composition and Antimicrobial Activity of Two Sri Lankan Lichens, Parmotrema rampoddense, and Parmotrema tinctorum against Methicillin-Sensitive and Methicillin-Resistant Staphylococcus aureus

Table 5

Minimum inhibitory concentration (MIC) of different lichen extracts determined by broth microdilution assay against MSSA (ATCC 25923) and 20 clinical isolates of MRSA.
Bacterial strainMinimum inhibitory concentration (MIC) (mg/ml)
Hexane extractEthanol extractAqueous extract
P. tinctorumP. rampoddenseP. tinctorumP. rampoddenseP. rampoddense
MSSA2.4122.40.01922.4
MRSA 112122.42.460
MRSA 21260120.09660
MRSA 32.4602.40.09612
MRSA 42.4602.40.4860
MRSA 52.412122.412
MRSA 62.460122.412
MRSA 72.460120.09612
MRSA 82.4602.42.412
MRSA 92.4602.42.412
MRSA 102.412120.4812
MRSA 112.4602.42.412
MRSA 122.4602.40.482.4
MRSA 132.4122.42.42.4
MRSA 142.4602.40.09612
MRSA 152.4602.42.412
MRSA 162.460120.0962.4
MRSA 172.412122.460
MRSA 182.4602.40.4860
MRSA 192.460122.42.4
MRSA 202.4602.40.4812