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Table 2 Relative abundancesa of compound classes in analyzed fractions.

From: Antioxidant activity relationship of phenolic compounds in Hypericum perforatumL.

 

Peaks

0-2.5 min

Peaks

2.5-4.7 minc

Peaks

4.7-6.5 mind

 

Totalb

Phenolic acids

Flavonoid glycosides

Flavonoid aglycones

Biflavonoids

  

I-1

16.2

0.430

2.72

4.41

6.14

31.8

68.7

I-2

37.2

1.30

6.49

20.3

3.02

49.1

nd

I-3

29.9

nde

0.414

8.49

12.7

94.1

610

I-4

0.584

nd

nd

nd

nd

137

968

I-5

420

nd

nd

11.7

263

1000

nd

II-2p

17.9

0.866

5.77

7.67

0.496

36.9

nd

II-2s

17.3

0.743

5.83

6.70

1.40

41.5

nd

II-3

31.4

0.257

4.50

7.75

14.2

119

28.4

  1. a given as peak areas divided by injected mass, normalized to 1000 for convenience
  2. b including phenolic acids, flavonoids, biflavonoids and unidentified peaks
  3. c mostly naphthodianthrones
  4. d phloroglucinols
  5. e not detected