| Titre : | Acaricidal activity and essential oil composition of petiveria alliacea L. from pernambuco (Northeast Brazil) (2011) |
| Auteurs : | I. de A. Neves, Auteur ; Claudio A. G. Da Camara, Auteur ; J. C. S. Oliviera, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | The journal of essential oil research (Vol. 23 N° 1, Janvier/Fevrier 2011) |
| Article en page(s) : | pp. 23 - 26 |
| Note générale : | Génie Chimique |
| Langues : | Anglais |
| Index. décimale : | 646 |
| Tags : | Petiveria alliacea Phytolaccaceae Essential oil composition Benzyl alcohol Carvacrol (Z)-3-hexenyl benzoate Dibenzyl disulphide Tetranychus urticae Acaricidal activity |
| Résumé : |
The essential oils of the leaves, stems, flowers and roots of Petiveria alliacea L., growing wild in Limoeiro, Pernambuco, were investigated by combinations of GC and GC/MS.
Eighteen components were identified in the oils from leaves, stems, flowers and roots, comprising 87.1%, 93.1%, 94.9%, and 96.4% of the oils, respectively. Petiveria alliacea produced an oil dominated by benzenoids and polysulphide compounds, with the principal components being benzyl alcohol (46.6% in the root oil); carvacrol (50.9% in the leaf oil, 48.3% in the stem oil and 29.7% in the flower oil); (Z)-3-hexenyl benzoate (18.6% in the leaf oil, 9.5% in the stem oil and 30.5% in the flower oil) and dibenzyl disulphide (17.6% in the leaf oil, 23.1% in the stem oil, 15.7% in the flower oil and 19.1% in the root oil). The acaricidal activities of the oils against Tetranychus urticae were also investigated. The lowest values of LC50 were observed for the flower oil (0.16 µL/L of air) and root (0.12µL/L of air), which did not differ significantly between themselves. |
| DEWEY : | 665 |
| ISSN : | 1041-2905 |
| En ligne : | http://www.jeoronline.com/archive/detail/55 |
