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Table 2 Antioxidant activity of Ajuga integrifolia micro-shoot cultures. DPPH (2,2-diphényl-1-picrylhydrazyle), ABTS (2,2-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid) and FRAP (ferric reducing antioxidant power)

From: Differential induction of antioxidant and anti-inflammatory phytochemicals in agitated micro-shoot cultures of Ajuga integrifolia Buch. Ham. ex D.Don with biotic elicitors

Treatment Concentration Antioxidant activities
DPPH (%) ABTS (TEAC μM) FRAP (TEAC μM)
Control 81.2 ± 3.28c 245.23 ± 8.79 f 397.77 ± 13.34g
Yeast extract (mg/L) 1 86.4 ± 2.14b 297.68 ± 4.67 de 482.78 ± 19.46e
10 89.8 ± 1.61a 340.41 ± 11.67 c 552.21 ± 15.46d
50 88.6 ± 2.46a 286.32 ± 23.48 e 463.96 ± 11.67ef
100 88.4 ± 1.42a 282.85 ± 13.45 e 458.77 ± 12.46f
200 85.4 ± 3.47b 337.64 ± 9.49 c 547.67 ± 16.19d
Pectin (mg/L) 1 88.4 ± 0.97a 473.25 ± 8.49 a 767.64 ± 11.34a
10 85.3 ± 2.15b 418.47 ± 14.67 b 678.74 ± 17.15b
50 89.6 ± 1.35a 487.27 ± 12.78 a 790.36 ± 13.64a
100 82.2 ± 4.31bc 301.61 ± 21.25 d 489.27 ± 15.17e
250 82.5 ± 3.94bc 316.45 ± 16.31 d 513.27 ± 9.67de
500 88.2 ± 2.44a 384.12 ± 11.66 bc 622.94 ± 14.97c
  1. Values represent means ± standard errors from triplicates; different letters indicate significant differences at p < 0.05