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Table 1 Total polyphenolic content, flavonoid contents, and reducing power of various extracts of Sutherlandia Frutescens

From: Antioxidant potential of Sutherlandia frutescens and its protective effects against oxidative stress in various cell cultures

Extract Total Polyphenolic Content (GAE, in μg/mg of dried leaves) Flavonoid Content (QE, in μg/mg of dried leaves) Total Reducing Power (AAE, in μg/mg of dried leaves)
Hot water 12.9 ± 0.17 28.7 ± 0.32 8.63 ± 0.17
Cold water 11.3 ± 0.32a 17.5 ± 0.50a 7.74 ± 0.09a
Methanol 9.26 ± 0.18ab 24.7 ± 0.32ab 7.10 ± 0.47ab
Ethanol 4.66 ± 0.13abc 17.0 ± 0.41ac 2.06 ± 0.09abc
Acetone 2.29 ± 0.16abcd 9.33 ± 0.38abcd 0.98 ± 0.16abcd
Acetonitrile 1.57 ± 0.01abcde 6.08 ± 0.18abcde 0.68 ± 0.05abcd
  1. All experiments were performed in quadruplicates, and the values reported are mean ± SD. (a: different from hot water extract, b: different from cold water extract, c: different from methanol extract, d: different from ethanol extract, e: different from acetone extract, p<0.05).