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Table 1 The IC50 values of LAMF, LAMR, morin, and chlorogenic acid in various antioxidant assays (μg/mL or μM)

From: Lyophilized aqueous extracts of Mori Fructus and Mori Ramulus protect Mesenchymal stem cells from •OH–treated damage: bioassay and antioxidant mechanism

Assays LAMF LAMR morin chlorogenic acid luteolin Trolox
PTIO• Scavenging 6609.7 ± 756.6d 4286.9 ± 84.9c 103.4 ± 0.9b (344.6 ± 2.9C) 99.6 ± 2.3b
(281.4 ± 6.5B)
ND 40.6 ± 6.1a (162.2 ± 24.2 A)
DPPH•-scavenging 208.7 ± 3.0d 97.3 ± 3.1c 8.2 ± 0.7b
(27.1 ± 2.2 D)
5.6 ± 0.01a
(15.8 ± 0.03B)
3.2 ± 0.1a
(11.1 ± 0.2A)
4.5 ± 0.1a
(18.1 ± 0.4 C)
ABTS• scavenging 73.5 ± 5.8c 34.4 ± 0.1b 4.2 ± 0.2a
(13.9 ± 0.6 B)
5.8 ± 0.3a
(16.4 ± 0.9 B)
2.6 ± 0.1a
(9.0 ± 0.2A)
1.9 ± 0.6a
(7.7 ± 2.6A)
FRAP 277.0 ± 3.1c 191.9 ± 5.2b 5.0 ± 0.2a
(16.7 ± 0.8 B)
4.9 ± 1.0a
(13.9 ± 2.7A)
5.8 ± 0.1a
(20.1 ± 0.2C)
7.0 ± 0.4a
(28.1 ± 1.7 D)
Cu2+-reducing 212.5 ± 7.0c 123.2 ± 0.9b 14.1 ± 0.04a
(46.5 ± 0.1 B)
12.5 ± 0.6a
(35.2 ± 1.6 A)
10.2 ± 0.3a
(36.8 ± 0.9A)
15.7 ± 0.6a
(62.7 ± 2.5 C)
  1. The IC50 value is defined as the concentration for a 50% effect and is expressed as the mean ± SD (n = 3). The IC50 values without parentheses are in μg/mL units; The IC50 values in parentheses are in μM units. Mean IC50 values in μg/mL units with different superscripts (a, b) in the same row are significantly different (p < 0.05), while those with the same superscripts are not significantly different (p < 0.05). Mean IC50 values in μM units with different superscripts (A, B) in the same row are significantly different (p < 0.05), while those with the same superscripts are not significantly different (p < 0.05). FRAP ferric ion reducing antioxidant power; ABTS, 2,2′-azino-bis (3-ethylbenzo-thiazoline-6-sulfonic acid; DPPH, 1,1-diphenyl-2-picryl-hydrazl; PTIO, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide; LAMF, lyophilized aqueous extract of Mori Fructus; lyophilized aqueous extract of Mori Ramulus. Trolox acted as the positive control. The dose-response curves are listed in Additional file 1