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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