Table 1.

Inhibitory effects of (E)-2-benzoyl-3-(substituted phenyl) acry lonitrile derivatives BPA1–BPA13 and of kojic acid on mushroom tyrosinase activity

Compound	Inhibition (%)
BPA1–BPA10	NI
BPA11	22.53±1.44
BPA12	30.13±2.06
BPA13	44.68±0.62
Kojic acid	39.35±0.83

Notes: Mean ± standard error are shown. The results are representative of at least three independent experiments, which were conducted at a concentration of 25 µM.

Abbreviation: NI, no inhibition.