Applied Biological Chemistry

Table 3 DPPH radical scavenging activity of S1 – S12

From: Antioxidant activity of different cultivars of Chrysanthemum morifolium and quantitative analysis of phenolic compounds by HPLC/UV

Sample	Concentration (mg/mL)	DPPH
Sample	Concentration (mg/mL)	Scavenging activity (%)		IC₅₀ (mg/mL)
S1	1.25	28.97 ± 2.67		2.5 ± 0.2^de
	2.5	50.13 ± 5.31
	5.0	88.73 ± 0.74
S2	2.5	22.66 ± 1.57		7.1 ± 0.2^a
	5.0	36.11 ± 2.03
	10.0	67.46 ± 0.90
S3	1.25	20.14 ± 2.74		3.8 ± 0.1^c
	2.5	35.66 ± 1.69
	5.0	63.02 ± 1.41
S4	2.5	27.70 ± 0.62		5.9 ± 0.2^b
	5.0	43.59 ± 2.67
	10.0	77.68 ± 3.61
S5	1.25	25.22 ± 3.38		3.0 ± 0.1^d
	2.5	46.04 ± 2.27
	5.0	74.45 ± 3.11
S6	1.25	36.60 ± 1.47		2.0 ± 0.1^e
	2.5	60.88 ± 2.09
	5.0	90.58 ± 0.80
S7	1.25	26.49 ± 1.49		2.6 ± 0.1^d
	2.5	52.16 ± 0.46
	5.0	83.47 ± 1.05
S8	2.5	21.42 ± 2.69		7.0 ± 0.4^a
	5.0	35.70 ± 3.47
	10.0	69.30 ± 1.56
S9	1.25	26.19 ± 3.05		2.6 ± 0.3^d
	2.5	52.69 ± 6.40
	5.0	86.43 ± 1.82
S10	0.5	25.71 ± 2.74		1.2 ± 0.1^f
	1.0	42.47 ± 1.17
	2.0	80.23 ± 1.50
S11	1.25	20.52 ± 2.93		3.8 ± 0.2^c
	2.5	35.36 ± 2.65
	5.0	62.83 ± 1.05
S12	1.25	32.43 ± 0.96		2.5 ± 0.1^de
	2.5	47.43 ± 3.46
	5.0	89.18 ± 0.11
AA				0.14 ± 0.0

AA represents ascorbic acid, which was the positive control
^a–fDifferent letters in the same column indicate significant statistical differences (p < 0.05)

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