Table 5. ABTS radical scavenging activity of Platycodon grandiflorum flower extract with different ratio of edible ethanol in extraction solvent

(%)

Ethanol content of extraction solvent (%) Sample concentration ( μg/mL)

0.5 1 2 5 10

10 20.36±0.53^1)a2)A3) 37.10±0.68^bA 61.54±0.71^cB 93.02±0.73^dA 97.43±0.20^eA

30 22.94±0.58^aB 37.24±0.53^bA 60.68±0.38^cA 92.66±1.33^dA 97.18±0.05^eA

60 28.00±0.24^aC 47.18±0.68^bB 77.30±0.18^cC 97.14±0.07^dB 97.39±0.04^dA

Positive control Ascorbic acid concentration ( μg/mL)

1.6 3.1 6.3 12.5 25.0

Activity (%) 7.85±1.00 17.48±0.94 37.80±0.83 78.53±0.91 96.19±0.04

¹⁾All values are mean±SD (n=4).
^2)a-eMeans with different superscript within the same row are significantly different by Duncan's multiple range test (p<0.05).
^3)A-CMeans with different superscript within the same column are significantly different by Duncan's multiple range test (p<0.05).

Ethanol content of extraction solvent (%)	Sample concentration ( μg/mL)
Ethanol content of extraction solvent (%)	0.5	1	2	5	10
10	20.36±0.53^1)a2)A3)	37.10±0.68^bA	61.54±0.71^cB	93.02±0.73^dA	97.43±0.20^eA
30	22.94±0.58^aB	37.24±0.53^bA	60.68±0.38^cA	92.66±1.33^dA	97.18±0.05^eA
60	28.00±0.24^aC	47.18±0.68^bB	77.30±0.18^cC	97.14±0.07^dB	97.39±0.04^dA
Positive control	Ascorbic acid concentration ( μg/mL)
	1.6	3.1	6.3	12.5	25.0
Activity (%)	7.85±1.00	17.48±0.94	37.80±0.83	78.53±0.91	96.19±0.04