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International Journal of Phytomedicine and Phytotherapy

Table 7 Chemical composition of the n-butanol fraction of P. guineense following GC-MS analysis

From: In vitro antidiabetic potentials, antioxidant activities and phytochemical profile of african black pepper (Piper guineense)

Peak

Retention Time

Area %

Name

1

4.794

0.34

Pentanoic acid, 3-methyl-4-oxo-

2

7.04

0.41

Phenol

3

7.300

0.48

But-3-enul (E)- 2methyl-2-enoate

4

7.826

0.25

Benzylamine, N-(3-chloro-2,2-dimethyl-1p)

5

8.184

0.28

p-Cresol

6

8.354

0.88

Phenol, 2-methoxy-

7

8.450

0.25

Cyclohexane, 1-propenyl-

8

9.283

0.19

Phenol, 3,4-dimethyl

9

9.575

0.21

Phenol, 3.4-dimethyl

10

9.674

0.20

1,2-Benzenediol, o-valeryl-

11

9.862

1.99

Benzofuran, 2,3-dihydro-

12

9.998

0.30

1H-Pyrrole-2,5-dione, 3-ethyl-4-methyl-

13

10.124

0.27

2-Coumaranone

14

10.271

0.06

Ethosuximide

15

10.311

0.08

Methyl 5-norbornene-2-carboxylate

16

10.631

0.36

2(1H)-Naphthalenone, 3,4,4a,5,6,7-hexahy

17

10.793

1.66

Indole

18

10.897

1.97

2-Methoxy-4-vinylphenol

19

10.973

0.37

1-Heptanol, 2-propyl-

20

11.090

0.11

2,2,3,3-Tetrathyloxirane

21

11.246

0.77

1,4-Butanediol, 2,3-bis(methylene)-

22

11.559

0.34

1-Dodecene

23

11.631

0.13

Oxalic acid, allyl nonyl ester

24

11.827

0.46

Vanillin

25

11.888

0.20

6,8-Nonadien-2-one, 6-methyl-5-(1-methyl

26

11.951

0.15

6,8-Nonadien-2-one, 6-methyl-5-(1-methyl

27

12.098

0.66

6,8-Nonadien-2-one, 6-methyl-5-(1-methyl

28

12.284

0.20

Phenol, 2-methyoxy-4-(1-propenyl)-, (Z)-

29

12.388

0.24

1b5,5,6a-Tetramethyl-octahydro-1-oxa-

30

12.542

0.44

2-Methyl-4-(2,6,6-trimethylcyclohex-1-enyl

31

12.661

0.27

5-Hepten-3-yn-2-ol,6-methyl-5-(1-methyle

32

12.899

0.28

2-Heptenal, 2-propyl-

33

12.996

0.46

2-Hydroxl-3,5,5-trimethyl-cyclohex-2-enor

34

13.077

0.49

4H-1,3,2-Dioxaborin, 6-ethenyl-2-ethyl-4-

35

13.133

0.67

5-Ethenyl-5-(1-methyl-3-butenyl)hexahydro

36

13.242

0.19

2(4H)-Benzofuranone,5,6,7,7a-tetrahydro

37

13.298

0.20

4′Ethoxy-2’hydroxyoctadecanophenone

38

13.440

0.47

E-14-Hexadecenal

39

13.599

0.14

Cyclopentanone, 2-(2-nitro-2-heptenyl)

40

13.706

0.17

3-Hexen-2-one, 3-cyclohexyl-4-ethyl

41

13.819

0.29

cis-Z-alpha-Bisbolene epoxide

42

13.967

1.02

trans-p-Mentha-2,8-dienol

43

14.102

1.70

2-Cyclohexen-1-one, 4-(3-hydroxy-1-buten

44

14.144

0.41

11-Isopropylidene-tricyclo[4,3,1,1(2,5)und

45

14.204

1.37

6-epi-shyobunol

46

14.297

2.05

3-Buten-2-one, 4-(2-hydroxy-2,6,6-trimethyl

47

14.444

3.35

3-Buten-2-one, 4-(4-hydroxy-2,6,6-trimethyl

48

14.631

0.90

2-Cyclohexen-1-one, 4-(3-hydroxybutyl)-3

49

14.893

0.85

4-((1E)-3-Hydroxy-1-propenyl)-2-methoxy

50

15.107

1.94

2H-Pyran, 2-(2-heptadecynyloxy) tetrahydro

51

15.167

1.45

1H-Indole, 3-(3,7,11,15-tetramethylhexade

52

15.266

2.88

2-Butenal, 2-methyl-4-(2,6,6-trimethyl-1-

53

15.309

6.74

9,10-Dimethyltricyclo [4.2.1.1(2,5)]decane

54

15.487

1.50

Spiro [4, 5] decan-7-one. 1,8-dimethyl-8,9

55

15.626

4.26

1-Cyclohexane-1-methanol alpha,2,6,6

56

15.775

1.43

Acetic acid, 10,11-dihydroxy-3,7,11trimethy

57

16.110

2.66

Hexadecanoicaci, methyl ester

58

16.451

3.48

Dibutyl phthalate

59

16.570

2.99

1,2-Benzenedicarboxylic acid, butyl octyl

60

17.071

1.37

9,9-Dimethoxybicyclo[3,3,1]nona-2,4-

61

17.124

1.85

Phthalic acid, isobutyl octadecyl ester

62

17.281

1.39

2-Dodecen-1yl (−) succinic anhydride

63

17.339

2.18

Cyclopropaneoctanoic acid, 2-

64

17.391

2.36

9,12,15-Octadecatrienoic acid ethyl ester

65

17.466

9.11

Phytol

66

17.710

2.66

Butane,1-(2,2-dichloro-3,3-dimethylcyclop

67

17.822

2.05

Decanediocacid,dibutyl ester

68

18.322

10.95

Tributyl acetylcitrate

69

18.652

2.11

1b,4a-Epoxy-2H-cyclopenta

70

20.311

3.09

Hexandecanoic acid

71

20.466

2.01

Bis(2-ethylhexyl)phthalate