Table 1
Tyrosinase inhibitory activity of the methanolic extract of E. bicyclis and its solvent fractions

Samples

IC50 (μg/mL) a

EtOH ex.

499.0 ± 6.6

n-hexane fr.

> 1000

CH2Cl2 fr.

254.2 ± 0.3

EtOAc fr.

37.6 ± 0.1

n-BuOH fr.

82.4 ± 0.1

H2O fr.

514.9 ± 9.4

Arbutin b

299.3 ± 12.3