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Table 4 Scavenging activity by ABTS assay

From: Thai plants with high antioxidant levels, free radical scavenging activity, anti-tyrosinase and anti-collagenase activity

Extract %Scavenging activity (%SC) mg VCEAC/g dry weight
Petroleum ether Dichloromethane Ethanol Petroleum ether Dichloromethane Ethanol
Annona squamosa L. 29.89 ± 0.79 36.31 ± 0.60 99.13 ± 0.29 25.76 ± 0.76 34.40 ± 0.32 96.15 ± 0.38
Ardisia elliptica Thunb. 73.08 ± 1.48 90.01 ± 0.54 99.84 ± 0.07 65.28 ± 1.86 86.34 ± 1.07 96.97 ± 0.34
Croton roxburghii N.P.Balakr 12.19 ± 0.91 33.54 ± 0.65 73.86 ± 1.22 9.14 ± 0.45 33.22 ± 0.46 69.62 ± 0.90
Croton sublyratus Kurz 16.34 ± 0.69 18.47 ± 0.73 60.36 ± 0.17 13.07 ± 1.29 17.81 ± 1.20 58.62 ± 0.68
Datura metel L. 20.17 ± 0.68 43.79 ± 0.89 61.94 ± 0.50 16.42 ± 0.65 42.36 ± 1.11 60.06 ± 0.16
Garcinia mangostana Linn. 47.01 ± 2.73 97.96 ± 0.85 99.66 ± 0.05 45.10 ± 2.45 95.19 ± 1.43 96.52 ± 0.34
Gynura pseudochina (L.) DC. NA 28.88 ± 0.45 27.52 ± 1.66 NA 28.00 ± 0.36 25.37 ± 1.99
Hibiscus mutabilis L. NA 21.36 ± 0.51 44.74 ± 0.23 NA 20.34 ± 0.42 43.29 ± 1.26
Ipomoea pes-caprae (L.) R.br. 8.03 ± 0.54 32.30 ± 1.93 77.43 ± 1.74 4.53 ± 0.34 31.41 ± 2.73 75.16 ± 2.37
Phyllanthus acidus (L.) Skeels NA 40.72 ± 1.25 99.43 ± 0.17 NA 40.06 ± 1.90 96.27 ± 0.10
Rhinacanthus nasutus (L.) Kurz 13.55 ± 0.49 28.90 ± 0.57 56.26 ± 0.90 10.60 ± 0.24 28.29 ± 1.77 53.26 ± 1.95
Senna alata (L.) Roxb. 12.51 ± 0.41 29.21 ± 1.35 99.45 ± 0.11 8.79 ± 0.17 28.97 ± 0.56 96.28 ± 0.12
Stemona curtisii Hook.f. NA 27.65 ± 1.30 95.49 ± 0.25 NA 27.48 ± 0.11 91.91 ± 0.63
Streblus asper Lour. NA 33.22 ± 0.77 87.32 ± 0.39 NA 32.92 ± 1.57 83.78 ± 0.90
  1. Each value is mean ± S.D. of triplicate independent analyses. Calculations of values are described in the Materials and Methods section. VCEAC Vitamin C Equivalent Antioxidant capacity, NA not available