Antibacterial Effect of Black Pepper Petroleum Ether Extract against Listeria monocytogenes and Salmonella typhimurium

Table 1

The chemical components of BPPE.

No.	Name of the compound	RT (min)	Area%
1	2-Methylene-4,8,8-trimethyl-4-vinyl-bicyclo[5.2.0]nonane	11.623	9.36
2	4-Ethenyl-.alpha.,.alpha.,4-trimethyl-3-(1-methylethenyl)-, [1R-(1.alpha.,3.alpha.,4.beta.)]-cyclohexanemethanol	12.996	1.86
3	Decahydro-4a-methyl-1-methylene-7-(1-methylethenyl)-, [4aR-(4a.alpha.,7.alpha.,8a.beta.)]-naphthalene	13.971	1.23
4	Decahydro-4a-methyl-1-methylene-7-(1-methylethylidene)-, (4aR-trans)-naphthalene	14.052	0.99
5	Caryophyllene oxide	19.011	4.85
6	Longipinocarvone	20.059	2.29
7	1,3,3-Trimethyl-2-oxabicyclo[2.2.2]octan-6-ol	22.485	0.80
8	Piperonal	23.192	2.18
9	Decahydro-1,1,7-trimethyl-4-methylene-, [1ar-(1a.alpha.,4a.alpha.,7.beta.,7a.beta.,7b.alpha.)]-1H-cycloprop[e]azulen-7-ol	23.576	4.30
10	4,4-Dimethyl-tetracyclo[6.3.2.0(2,5).0(1,8)]tridecan-9-ol	24.261	3.54
11	cis-Bicyclo[4.4.0]decan-1-ol-3-one	24.871	0.85
12	Alloaromadendrene oxide-(1)	25.476	1.99
13	Ethyl 9.cis.,11.trans-octadecadienoate	27.855	1.21
14	Behenic alcohol	28.605	1.02
15	Phytol	29.019	1.33
16	Dibutyl phthalate	30.277	1.16
17	Decahydro-1,1,7-trimethyl-4-methylene-, [1ar-(1a.alpha.,4a.alpha.,7.beta.,7a.beta.,7b.alpha.)]-1H-cycloprop[e]azulen-7-ol	30.598	1.08
18	Bendiocarb	31.856	0.79
19	n-Hexadecanoic acid	33.032	3.70
20	1-(1-(2-Thienyl)cyclohexyl)pyrrolidine	33.943	1.85
21	(8R,Z)-8-Methyl-6-((R)-2-methylpentylidene)octahydroindolizine	34.535	1.40
22	2-Ethyl-5-undecyl-.delta.1--pyrroline	34.656	1.68
23	6-Octadecenoic acid	36.081	3.06
24	(Z,Z)-9,12-Octadecadienoic acid	36.743	2.46
25	2-[1-Iminotetradecyl]-2-cyclohexen-3-ol-1-one	39.283	1.47
26	Pyrrolidide 4-hexadecenoic acid	39.777	1.26
27	cis-13-Octadecenoic acid	40.183	1.37
28	3-Octadecenoic acid	41.818	2.21
29	trans-2-Octadecenoic acid	42.222	2.67
30	3-[9-Tridecenyl]-4,5,6,7-tetrahydrobenz[z]isoxazole-5-ol-4-one	42.673	1.53