Research Article

Antimicrobial and Alpha-Amylase Inhibitory Activities of Organic Extracts of Selected Sri Lankan Bryophytes

Table 1

Antimicrobial activity of the crude extracts at 500 µg/disc concentrations.

Plant extractsAntimicrobial activity
Mean diameter of the inhibition zone (mm) ± SE (500 mg/disc)
S. aureusB. subtilisP. aeruginosaC. albicans

MR-Hex8.3 ± 0.2
FS-Hex10.5 ± 0.37.6 ± 0.27.3 ± 0.2
FS-EtOAc8.3 ± 0.29.2 ± 0.1
SD-Hex7.4 ± 0.2
SD-MeOH12.3 ± 0.27.4 ± 0.1
HC-Hex7.8 ± 0.2
HC-MeOH8.5 ± 0.2
CM-MeOH8.3 ± 0.27.3 ± 0.2
+ve control23.5 ± 0.420.3 ± 0.215.2 ± 0.113.1 ± 0.8
−ve control

Hex: hexane extract, EtOAc: ethyl acetate extract, and MeOH: methanol extract.