Table 6.

DPPH radical scavenging effects of black jujube extract according to aging times

Sample	Aging time (hr)	IC501) (mg/mL)
Ethanol extract	0	1.08±0.10d2)
	24	0.68±0.03b
	48	0.56±0.03a
	72	0.54±0.02a
Water extract	0	0.94±0.02c
	24	0.69±0.06b
	48	0.60±0.01a
	72	0.56±0.06a
BHT3)		2.62±0.92 μg/mL
BHA4)		9.63±0.31 μg/mL
Vitamin C		6.38±0.50 μg/mL

¹⁾Concentration required for 50% reduction of DPPH radical at 30 min after starting the reaction.

²⁾Data are expressed as mean±standard error values (n=3). Mean with different letters in each column are significantly different (p<0.05) by Duncan’s multiple range test.

³⁾Butylated hydroxy toluene.

⁴⁾Butylated hydroxy anisole.