Chemical compositions and antibacterial activity of the leaf and stem oils of Piper porphyrophyllum (Lindl). N.E. Br.
| dc.contributor.author | Ahmad, Farediah | |
| dc.contributor.author | Salleh, Wan Mohd | |
| dc.contributor.author | Sirat, Hasnah Mohd | |
| dc.contributor.author | Yen, Khong Heng | |
| dc.date.accessioned | 2012-11-15T14:06:47Z | |
| dc.date.available | 2012-11-15T14:06:47Z | |
| dc.date.issued | 2012-11-15 | |
| dc.description.abstract | The essential oils obtained by hydrodistillation from the fresh leaf and stem of Piper porphyrophyllum N.E. Br. were analyzed by GC and GC/MS. Thirty four constituents were identi-fied in the leaf oil, while thirty eight constituents were identified in the stems oil. The most abundant components in the leaf oil included bicyclogermacrene (14.7 %), α-copaene (13.2 %) and β-phellandrene (9.5 %) while sabinene (15.5 %), bicyclogermacrene (12.3 %) and α-copaene (8.1 %) were the main constituents in the stem oil. The evaluation of antibacterial activity by using microdilution method revealed that both oils were moderately active against all the Gram-positive bacteria (Staphylococcus aureus, Bacillus subtilis) and Gram-negative bacteria (Pseudomonas aeruginosa, Pseudomonas putida and Escherichia coli) with minimum inhibitory concentration (MIC) values in the range 125-1000 μg/ml. | en |
| dc.identifier.issn | 1611-2156 | |
| dc.identifier.uri | http://hdl.handle.net/2003/29758 | |
| dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-4900 | |
| dc.language.iso | en | de |
| dc.relation.ispartofseries | EXCLI Journal ; Vol. 11, 2012 | en |
| dc.subject | antimicrobial activity | en |
| dc.subject | chemical compositions | en |
| dc.subject | essential oils | en |
| dc.subject | Piper porphyrophyllum | en |
| dc.subject.ddc | 610 | |
| dc.title | Chemical compositions and antibacterial activity of the leaf and stem oils of Piper porphyrophyllum (Lindl). N.E. Br. | en |
| dc.type | Text | de |
| dc.type.publicationtype | article | de |
| dcterms.accessRights | open access | |
| eldorado.dnb.zdberstkatid | 2132560-1 |