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Table 3 Total polyphenols and free radical scavenger activity (IC50 in μg/mL) of Amazonian medicinal plants

From: Antioxidant activity and peroxidase inhibition of Amazonian plants extracts traditionally used as anti-inflammatory

Species

Phenols

ABTS

DPPH

O2 -•

1ΔgO2

B. japurensis

59.4

12.3 ± 0.2

8.4 ± 0.6

44.9 ± 6.4

1408 ± 113

C. spruceanum

60.2

5.0 ± 0.1

7.5 ± 0.9

18.2 ± 3.0

92.4 ± 24.8

M guyanensis

58.7

8.2 ± 0.3

28.4 ± 0.8

35.3 ± 3.0

517 ± 70.8

P. nitida

3.2

38.5 ± 1.9

49.9 ± 0.1

100 ± 9.9

In

P. olacoides

2.1

8.7 ± 0.3

29.7 ± 0.3

142 ± 16.5

715 ± 195

α-tocopherol

-

12.5 ± 0.6

10.4 ± 0.4

180 ± 14.4

nd

Ascorbic acid

-

4.8 ± 0.3

2.7 ± 0.3

32.9 ± 1.6

nd

Gallic acid

-

1.0 ± 0.1

1.1 ± 0.2

7.8 ± 1.2

nd

DABCO

-

nd

nd

nd

58.4 ± 6.0

TROLOX®

-

3.9 ± 0.1

5.6 ± 0.2

nd

nd

  1. Note: nd not determined, in. inactive. Phenols are expressed in Equivalent of Gallic acid/g dry extract