Table 6. FRAP of Platycodon grandiflorum flower extract with different ratio of edible ethanol in extraction solvent

(FeSO₄·7H₂O eq µM)

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

0.5 1 2 5 10

10 27.70±0.27^1)a2)B3) 63.05±0.41^bB 127.54±1.09^cB 292.20±1.76^dB 482.35±5.17^eB

30 21.86±0.36^aA 55.28±0.37^bA 112.75±0.76^cA 254.97±1.84^dA 398.56±2.79^eA

60 35.46±0.20^aC 81.16±0.49^bC 165.43±1.07^cC 385.90±0.70^dC 648.34±5.38^eC

Positive control Ascorbic acid concentration ( μg/mL)

1.6 3.1 6.3 12.5 25.0

Activity (%) 6.05±0.78 20.44±0.66 52.33±1.58 121.91±2.61 248.96±1.80

¹⁾All values are mean±SD (n=4).
^2)a-eMeans with different superscript small letters within the same row are significantly different by Duncan's multiple range test (p<0.05).
^3)A-CMeans with different superscript capital letters 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	27.70±0.27^1)a2)B3)	63.05±0.41^bB	127.54±1.09^cB	292.20±1.76^dB	482.35±5.17^eB
30	21.86±0.36^aA	55.28±0.37^bA	112.75±0.76^cA	254.97±1.84^dA	398.56±2.79^eA
60	35.46±0.20^aC	81.16±0.49^bC	165.43±1.07^cC	385.90±0.70^dC	648.34±5.38^eC
Positive control	Ascorbic acid concentration ( μg/mL)
Positive control	1.6	3.1	6.3	12.5	25.0
Activity (%)	6.05±0.78	20.44±0.66	52.33±1.58	121.91±2.61	248.96±1.80