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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).