Research Article

Effects of Black Pepper (Piper nigrum L.) Chloroform Extract on the Enzymatic Activity and Metabolism of Escherichia coli and Staphylococcus aureus

Table 1

The chemical components of BPCE.

NO.Name of compoundRT (min)Area%

(1)Cyclohexene, 4-ethenyl-4-methyl-3-(1-methylethenyl)-1-(1-methylethyl)-, (3R-trans)-8.9590.69
(2)α-Copaene9.4060.98
(3)2-Methylene-4,8,8-trimethyl-4-vinyl-bicyclo[5.2.0]nonane11.6226.92
(4)1,4,7,-Cycloundecatriene, 1,5,9,9-tetramethyl-, Z,Z,Z-13.0100.97
(5)1-Piperidinecarboxaldehyde14.9590.93
(6)Caryophyllene oxide19.0064.11
(7)Ethyl 6,9,12-hexadecatrienoate20.0510.81
(8)1,3,3-trimethyl-2-Oxabicyclo[2.2.2]octan-6-ol22.4821.60
(9)Hexadecanoic acid, methyl ester22.9680.91
(10)Piperonal23.1933.06
(11)1H-Cycloprop[e]azulen-7-ol, decahydro-1,1,7-trimethyl-4-methylene-, [1ar-(1aα,4aα,7β,7a,β,7bα.)]-23.5848.39
(12)4,4-dimethyl-tetracyclo[6.3.2.0(2,5).0(1,8)]tridecan-9-ol24.1671.29
(13)Tricyclo[5.2.2.0(1,6)]undecan-3-ol, 2-methylene-6,8,8-trimethyl-24.2623.94
(14)Alloaromadendrene oxide-(1)25.4773.53
(15)(+-)-1-Isopropylcyclopropane-trans-1,cis-2-dicarboxylic acid25.6890.84
(16)Octadecanoic acid, ethyl ester26.8210.92
(17)Ethyl oleate27.1443.64
(18)Ethyl 9.cis.,11.trans.-octadecadienoate27.8714.00
(19)Vanillin lactoside28.3020.83
(20)n-Tetracosanol-128.6000.83
(21)Ethyl 9,12,15-octadecatrienoate28.8401.91
(22)Phytol29.0202.45
(23)1H-Cycloprop[e]azulen-7-ol, decahydro-1,1,7-trimethyl-4-methylene-, [1ar-(1a.alpha.,4a.alpha.,7.beta.,7a.beta.,7b.alpha.)]-30.5992.81
(24)n-Hexadecanoic acid33.0375.12
(25)Naphthalene, decahydro-2,2-dimethyl-33.360.63
(26)1-(1-(2-Thienyl)cyclohexyl)pyrrolidine33.9482.85
(27)(8R,Z)-8-Methyl-6-((R)-2-methylpentylidene)octahydroindolizine34.5443.17
(28)2-Ethyl-5-undecyl-.δ.1- -pyrroline34.6623.02
(29)6-Octadecenoic acid36.0804.88
(30)9,12-Octadecadienoic acid (Z,Z)-36.7443.11
(31)(3S,5R,7aS)-3-(But-3-en-1-yl)-5-(hex-5-en-1-yl)hexahydro-1H-pyrrolizine36.8891.12
(32)Piperidine, 1-(1-oxo-3-phenyl-2-propenyl)-37.4031.62
(33)2-Cyclohexen-3-ol-1-one, 2-[1-iminotetradecyl]-39.2792.21
(34)Isonipecotic acid, N-acryloyl-, undecyl ester39.5740.93
(35)4-Hexadecenoic acid, pyrrolidide39.7631.34
(36)cis-13-Octadecenoic acid, 4,4-dimethyloxazoline derivative40.1710.90
(37)trans-2-Octadecenoic acid41.8044.90
(38)13-Eicosenoic acid, pyrrolidide42.4440.58
(39)Furan-2-carboxylic acid 2,2,6,6-tetramethyl-4-(2,2,2-trifluoro-acetylamino)-piperidin-1-yl ester42.5200.88
(40)4,5,6,7-Tetrahydrobenz[z]isoxazole-5-ol-4-one, 3-[9-tridecenyl]-42.6501.52
(41)10,13-Octadecadienoic acid42.9504.89