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Table 3 Extraction yields and antioxidant capacities of polyherbal formulas

From: Antioxidant capacities and total phenolic contents of 20 polyherbal remedies used as tonics by folk healers in Phatthalung and Songkhla provinces, Thailand

Samples

Yields

MCAa

FRAPb assay

Radical scavenging activities; IC50 (mg/mL)

 

% (w/w)

IC50 (mg/mL)

μM Fe2SO4/mg extract

DPPH

ABTS

THP-R001

5.68

0.93 ± 0.00

11.61 ± 0.25

–

–

THP-R002

4.60

0.94 ± 0.01

39.79 ± 0.72

2.15 ± 0.41

1.15 ± 0.00

THP-R003

5.68

0.63 ± 0.02

18.58 ± 0.35

–

2.01 ± 0.03

THP-R004

3.99

0.80 ± 0.01

42.51 ± 0.76

0.92 ± 0.02

1.09 ± 0.06

THP-R005

10.54

0.84 ± 0.01

38.84 ± 0.78

1.61 ± 0.03

1.38 ± 0.04

THP-R006

8.93

0.64 ± 0.01

15.63 ± 0.30

–

1.96 ± 0.10

THP-R007

8.07

0.64 ± 0.01

20.86 ± 0.65

–

1.45 ± 0.05

THP-R008

10.95

0.88 ± 0.01

51.62 ± 0.46

1.77 ± 0.05

1.31 ± 0.03

THP-R009

11.83

0.30 ± 0.01

20.27 ± 0.46

2.42 ± 0.05

1.79 ± 0.02

THP-R010

8.26

2.81 ± 0.04

87.12 ± 1.15

0.53 ± 0.02

0.42 ± 0.00

THP-R011

8.52

0.58 ± 0.02

30.33 ± 0.65

2.10 ± 0.03

1.31 ± 0.01

THP-R012

9.04

1.46 ± 0.06

40.70 ± 0.95

1.04 ± 0.07

0.87 ± 0.01

THP-R013

10.07

0.49 ± 0.01

20.92 ± 0.27

2.22 ± 0.04

1.89 ± 0.05

THP-R014

2.67

0.58 ± 0.02

54.55 ± 1.24

1.43 ± 0.07

0.55 ± 0.01

THP-R015

5.52

1.21 ± 0.01

84.22 ± 1.23

0.43 ± 0.02

0.70 ± 0.01

THP-R016

10.96

1.27 ± 0.02

95.76 ± 2.35

0.16 ± 0.00

0.34 ± 0.00

THP-R017

4.60

0.58 ± 0.02

82.32 ± 0.81

1.51 ± 0.24

1.07 ± 0.01

THP-R018

3.13

0.95 ± 0.02

18.75 ± 0.42

–

2.46 ± 0.10

THP-R019

4.31

1.24 ± 0.03

96.86 ± 1.63

0.50 ± 0.02

0.40 ± 0.01

THP-R020

4.09

0.57 ± 0.01

18.57 ± 0.15

–

–

Trolox

–

–

–

0.09 ± 0.01

0.34 ± 0.01

EDTA (μg/mL)

–

8.48 ± 0.34

–

–

–

  1. -; Not applicable
  2. a MCA; metal chelating activity
  3. bFRAP; ferric ion reducing antioxidant power