| chemical composition and antibacterial activity of the essential oil of cordia verbenacea from the venezuelan andes. | the essential oil of cordia verbenacea d.c. (boraginaceae) that grows in mérida-venezuela was obtained by hydrodistillation from the aerial parts of the plant, yielding 0.21%. the oil was analyzed by gc-fid and gc-ms. thirty one components which made up 94.3% of the oil were identified. the most abundant constituents found were: tricyclene (23.9%), bicyclogermacrene (11.7%), germacrene d (9.9%) and beta-caryophyllene (8.2%). antibacterial activity determination was carried out according to the d ... | 2009 | 19768996 |
| essential oil composition and antibacteral activity of vismia baccifera fruits collected from mérida, venezuela. | the essential oil from the fruits of vismia baccifera triana & planch. (gutttiferae), collected in june 2009, was analyzed by gc/ms. a yield of 0.6% oil was obtained by hydrodistillation. twenty-seven components were identified by comparison of their mass spectra with those in the wiley gc-ms library data base. the major components were trans-cadin-l1,4-diene (36.6%), cis-cadin-1,4-diene (18.8%) and beta-caryophyllene (11.9%). the essential oil showed a broad spectrum of antibacterial activity a ... | 2011 | 21615035 |