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International Journal of Phytomedicine and Phytotherapy

Table 8 Chemical composition of the ethyl acetate 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 R. Time Area% Name
1 4.895 0.18 Pentanoic acid, 3-methyl-4-oxo-
2 6.038 0.03 Cyclohexanone
3 6.985 0.39 Ethane, 1,1,1-triethoxy-
4 9.421 0.03 Cyclopentane, 1,1,3-trimethyl-
5 9.864 0.85 Benzofuran, 2,3-dihydro-
6 610.125 0.12 2-Coumaranone
7 10.613 0.05 2-Isopropyl-5-methylphenyl 2-methylbutano
8 10.899 1.07 4-Hydroxy-2-methylacetophenone
9 11.159 1.80 3-Amino-4-piperonyl-5-pyrazolone
10 11.290 1.95 1,6-Anhydro-4-(3,4-methylenedioxyphenylm
11 11.377 1.59 3-Amino-4-piperonyl-5-pyrazolone
12 11.558 0.11 1-Tetradecene
13 12.764 27.35 Ethyl piperonyl cyanoacetate
14 13.439 0.39 Cetene
15 15.316 6.88 (R)-(−)-14-Methyl-8-hexadecyn-1-ol
16 15.454 1.00 Heptadecanal
17 15.656 5.36 Piperine
18 16.111 0.91 Tricosanoic acid, methyl ester
19 16.292 0.80 7-Hexadecenal, (Z)-
20 16.445 1.32 1,2-Benzenedicarboxylic acid, butyl octyl e
21 16.601 1.10 9-Tricosene, (Z)-
22 16.643 1.70 Octacosane
23 17.277 1.79 n-Nonadecanol-1
24 17.371 1.23 7-Octadecenoic acid, methyl ester
25 17.478 15.17 Phytol
26 17.716 1.83 2,10-Dodecadien-1-ol,3,7,11-trimethyl-(Z
27 18.013 4.08 Octacosane
28 18.133 4.12 Piperine
29 18.425 3.15 (R)-(−)-14-Methyl-8-hexadecyn-1-ol
30 19.186 1.27 1,2-Propanediol, 3-(octadecyloxy)-, diacetate
31 19.367 2.45 Octacosane
32 19.773 8.65 Benzene, (3-iodo-1-methoxy-1-methylpropy
33 20.326 0.58 Hexadecanoic acid, 2-hydroxy-1-(hydroxym
34 20.459 0.69 Di-n-octyl phthalate