[article] 
inThe journal of essential oil research > Vol. 18 N° Spécial (Juillet 2006) . - pp. 60-65

Titre :	The chemo-geographical variation in essential oil composition and the antimicrobial properties of "wild mint" : Mentha longifolia subsp. polyadena (Lamiaceae) in Southern Africa
Type de document :	texte imprimé
Auteurs :	Alvaro M. Viljoen, Auteur ; Sahir Petkar, Auteur ; Sandy F. Van Vuuren, Auteur
Année de publication :	2013
Article en page(s) :	pp. 60-65
Note générale :	Génie Chimique
Langues :	Anglais (eng)
Mots-clés :	Mentha longifolia subsp. polyadena Lamiaceae Essential oil composition 1,8-cineole Limonene Menthofuran Pulegone Cis-piperitone oxide Piperitenone Antimicrobial activity
Résumé :	Mentha longifolia (L.) L. subsp. polyadena Briq. was collected from eight localities in southern Africa for a study of the chemical composition and antimicrobial activity. The essential oils were obtained by hydrodistillation and analysed by GC and GC/MS and a cluster analysis was performed on the oil dataset. From eight samples (representing eight natural populations), two major chemotypes were identified: a menthofuran-rich type (51-62%); and a cis-piperitone oxide (15-36%) and piperitenone oxide-rich type (15-66%). The constituent analysis showed quantitative variation with higher amounts of oxygen-containing monoterpenes ranging from 57% to 90% whilst the sesquiterpene hydrocarbons ranged from 4% to 17 %. The oil from the different geographical areas mostly showed moderate antimicrobial activity against Staphylococcus aureus, S. epidermidis, Bacillus cereus, Moraxella catarrhalis, Yersinia enterocolitica and Enterococcusfaecalis. The oils were generally inactive against Escherichia coli and Salmonella typhimurium. Candida albicans and Cryptococcus neoformans indicated highest sensitivities for oil samples from Komukwane and Prins Albert. These results may in part provide scientific evidence for the extensive use of Mentha longifolia in traditional healing.
ISSN :	1041-2905
En ligne :	http://cat.inist.fr/?aModele=afficheN&cpsidt=18019085

[article] The chemo-geographical variation in essential oil composition and the antimicrobial properties of "wild mint" : Mentha longifolia subsp. polyadena (Lamiaceae) in Southern Africa [texte imprimé] / Alvaro M. Viljoen, Auteur ; Sahir Petkar, Auteur ; Sandy F. Van Vuuren, Auteur . - 2013 . - pp. 60-65.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 18 N° Spécial (Juillet 2006) . - pp. 60-65

Mots-clés :	Mentha longifolia subsp. polyadena Lamiaceae Essential oil composition 1,8-cineole Limonene Menthofuran Pulegone Cis-piperitone oxide Piperitenone Antimicrobial activity
Résumé :	Mentha longifolia (L.) L. subsp. polyadena Briq. was collected from eight localities in southern Africa for a study of the chemical composition and antimicrobial activity. The essential oils were obtained by hydrodistillation and analysed by GC and GC/MS and a cluster analysis was performed on the oil dataset. From eight samples (representing eight natural populations), two major chemotypes were identified: a menthofuran-rich type (51-62%); and a cis-piperitone oxide (15-36%) and piperitenone oxide-rich type (15-66%). The constituent analysis showed quantitative variation with higher amounts of oxygen-containing monoterpenes ranging from 57% to 90% whilst the sesquiterpene hydrocarbons ranged from 4% to 17 %. The oil from the different geographical areas mostly showed moderate antimicrobial activity against Staphylococcus aureus, S. epidermidis, Bacillus cereus, Moraxella catarrhalis, Yersinia enterocolitica and Enterococcusfaecalis. The oils were generally inactive against Escherichia coli and Salmonella typhimurium. Candida albicans and Cryptococcus neoformans indicated highest sensitivities for oil samples from Komukwane and Prins Albert. These results may in part provide scientific evidence for the extensive use of Mentha longifolia in traditional healing.
ISSN :	1041-2905
En ligne :	http://cat.inist.fr/?aModele=afficheN&cpsidt=18019085