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Table 4 Antioxidant activity of the Mahanintangtong formula and its constituent herbs (n = 3)

From: Antibacterial, anti-inflammatory and antioxidant activities of Mahanintangtong and its constituent herbs, a formula used in Thai traditional medicine for treating pharyngitis

Plant name Extracts type IC50 ± SEM (μg/ml)
ABTS radical-scavenging assay DPPH radical-scavenging assay
Entada rheedii (carbonized) Ethanol 22.60 ± 0.86 21.15 ± 3.72
Water 10.29 ± 1.19 37.34 ± 0.54
Spondias pinnata (carbonized) Ethanol 14.08 ± 2.49 5.72 ± 0.90
Water 10.18 ± 1.05 28.64 ± 1.25
Sapindus rarak (carbonized) Ethanol > 100 > 100
Water 94.14 ± 6.71 > 100
Calamus caesius (carbonized) Ethanol 54.05 ± 0.75 58.93 ± 2.85
Water 26.16 ± 1.16 > 100
Tectona grandis (carbonized) Ethanol 10.13 ± 0.77 18.59 ± 2.65
Water 24.81 ± 2.20 30.12 ± 1.79
Dracaena loureiroi Ethanol 8.38 ± 0.95 16.95 ± 1.43
Water 10.92 ± 1.23 19.65 ± 0.30
Myristica fragrans Ethanol 49.69 ± 2.02 19.76 ± 0.98
Water 24.21 ± 1.13 30.99 ± 1.33
Pogostemon cablin Ethanol 63.50 ± 3.88 17.81 ± 1.15
Water 35.09 ± 0.96 18.10 ± 1.72
Tiliacora triandra Ethanol > 100 65.30 ± 2.04
Water 79.48 ± 2.12 21.04 ± 2.09
Chinese ink (Inkstick) Ethanol N/A N/A
Water > 100 > 100
Monetaria moneta (Money cowry) Ethanol N/A N/A
Water > 100 > 100
Mahanintangtong formula Ethanol 14.86 ± 0.240 15.31 ± 1.01
Water 34.43 ± 0.47 22.58 ± 1.33
BHT 5.66 ± 0.26 14.87 ± 0.94
Trolox 4.71 ± 0.04 5.02 ± 0.20
  1. Means of three measurements ± SEM (n = 3); BHT and Trolox were used as a positive control for antioxidant activity