| Titre : | The geographical variation and antimicrobial activity of african wormwood (Artemisia afra Jacq.) essential oil (2013) |
| Auteurs : | Alvaro M. Viljoen, Auteur ; Sandy F. Van Vuuren, Auteur ; Tebogo Gwebu, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | The journal of essential oil research (Vol. 18 N° Spécial, Juillet 2006) |
| Article en page(s) : | pp. 19-25 |
| Note générale : | Génie Chimique |
| Langues : | Anglais |
| Tags : | Artemisia afra Asteraceae Essential oil composition 1,8-cineole ketone α ; -thujone β ; -thujone alcohol Camphor Antimicrobial activity Death kinetics |
| Résumé : | The aerial parts of 16 individual Artemisia afra plants from four natural populations were hydrodistilled and the essential oil analyzed by GC/MS. The oil composition varied quantitatively and qualitatively within and between natural populations and showed no correlation to the geographical distribution. The antimicrobial activity was demonstrated by means of time-kill methodology using the respiratory pathogens C. neoformans and K. pneunwniae. Antimicrobial activity was most prominent within 10 min at concentration 0.75% for K. pneumoniae and within 60 min at concentration 1% for C. neofomans. Investigation of the four major compounds most abundant in the A. afra oil (artemisia ketone, 1,8-cineole, α- and β-thujone) indicated minimal antimicrobial activity when investigated independently and in various combinations against K. pneumoniae. |
| ISSN : | 1041-2905 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=18019076 |
