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Table 1 Yield, polyphenolic content and antioxidant activities of the crude methanol seed extract of T. indica and the corresponding fractions

From: Polyphenols from the extract and fraction of T. indica seeds protected HepG2 cells against oxidative stress

Extracts

Yield (mg/g dried weight)

Polyphenolic content (GAE mg/g)

Ferric reducing activity (mmol/g dried weight)

DPPH• radical scavenging activity (IC50 in μg/ml)

Crude

Seeds

240.72

271.23 ± 4.78a

1.45 ± 0.018a

50.23 ± 0.37a

Fraction

1

20.80

84.25 ± 12.38b

0.52 ± 0.003b

ND

2

107.28

444.57 ± 3.97c

2.30 ± 0.001c

60.76 ± 0.45b

3

209.52

571.71 ± 3.78d

5.50 ± 0.001d

42.31 ± 0.32c

4

56.60

141.81 ± 4.59e

1.08 ± 0.01e

ND

5

10.13

15.58 ± 1.03f

ND

ND

6

6.76

10.38 ± 0.60g

ND

ND

7

8.29

11.49 ± 0.15h

ND

ND

  1. a-h Values not sharing the same superscript lowercase letter within the same column are significantly different at p < 0.01
  2. Results are average of triplicate analyses ± S.D
  3. ND not detected