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Table 4 Antioxidant activity of herbal medicines including TEAC, ORAC, HRSA and SRSA

From: The inhibitory activity of herbal medicines on the keys enzymes and steps related to carbohydrate and lipid digestion

Plant samples

Antioxidant activity

TEAC

ORAC

SRSA

HRSA

Rhinacanthus nasutus

0.92 ± 0.01

18.31 ± 0.07

5.31 ± 0.45

1.86 ± 0.02

Cissus quadrangularis

0.52 ± 0.01

9.14 ± 0.05

0.31 ± 0.03

2.29 ± 0.05

Syzygium aromaticum

4.70 ± 0.03a

31.21 ± 0.21a

18.82 ± 0.50a

0.15 ± 0.04a

Acanthus ebracteatus

0.50 ± 0.01

10.77 ± 0.23

9.47 ± 0.39

0.38 ± 0.01

Thunbergia laurifolia

1.07 ± 0.01

44.41 ± 0.53

14.39 ± 0.24

1.48 ± 0.08

Phyllanthus amarus

1.40 ± 0.01

19.70 ± 0.17

15.77 ± 0.45

0.06 ± 0.02

Cassia alata

0.69 ± 0.01

14.63 ± 0.13

4.89 ± 0.31

1.15 ± 0.04

Pluchea indica

1.61 ± 0.01

28.06 ± 0.19

19.38 ± 0.50

0.05 ± 0.01

Cryptolepis buchanani

1.01 ± 0.01

21.22 ± 0.05

10.30 ± 0.18

1.14 ± 0.01

Derris scandens

1.38 ± 0.01

18.21 ± 0.23

7.32 ± 0.24

1.46 ± 0.01

Schefflera leucantha

0.86 ± 0.02

19.61 ± 0.44

7.80 ± 0.42

0.59 ± 0.02

  1. Data are expressed as mean ± S.E.M, n = 3. TEAC was expressed as micromole trolox/ mg dried extract. ORAC was expressed as micromole trolox/ mg dried extract. Hydroxyl radical scavenging activity (HRSA) was expressed as milligram trolox/mg dried extract. Superoxide radical scavenging activity (SRSA) was expressed as milligram trolox/mg dried extract. aantioxidant activity of Syzygium aromaticum was previously reported by our publication [62]