Tyrosinase Inhibitory Effect and Antioxidative Activities of Fermented and Ethanol Extracts of Rhodiola rosea and Lonicera japonica

Table 1

Total phenolic content and IC₅₀ values of antioxidative activities of fermented and ethanol extracts of Rhodiola rosea and Lonicera japonica.

	Rhodiola rosea		Lonicera japonica
	Ethanol	Fermented	Ethanol	Fermented
Total phenolic content (mg GAE/g sample)	142.12 ± 10.27^b#	241.58 ± 16.16	67.25 ± 9.91^d	116.70 ± 3.96^c
DPPH scavenging ED50 (mg/mL)	0.11 ± 0.00^b	0.07 ± 0.00^a	0.45 ± 0.01^d	0.21 ± 0.01^c
Superoxide scavenging ED50 (mg/mL)	1.15 ± 0.02^d	0.37 ± 0.00^b	0.66 ± 0.01^c	0.28 ± 0.00^a

#The samples with different letters in superscript in the same assay indicate a significant difference (P < 0.05).