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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