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Variability in the chemical compositions of the essential oils of five ocimum species from tropical african area / F. Tchoumbougnang in The journal of essential oil research, Vol. 18 N° 2 (Mars-Avril 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 2 (Mars-Avril 2006) . - pp. 194-199 Titre : Variability in the chemical compositions of the essential oils of five ocimum species from tropical african area Type de document : texte imprimé Auteurs : F. Tchoumbougnang, Auteur ; P. H. Amvam Zollo, Auteur ; F. Avlessi, Auteur Année de publication : 2006 Article en page(s) : pp. 194-199 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Ocimum  basilicum  Ocimum  gratissimum  Ocimum  americanum  (Ocimum  canum)  Ocimum  lamiifolium  Ocimum  minimum  Essential  oil  composition  1,8-cineole  Linalool  Thymol  Methyl  chavicol  Sabinene  Eugenol  (E,E)-α-farnesene  (Z)-β-ocimene Résumé : As part of our research on aromatic plants from Africa, we have analyzed, via GC and CG/MS, the essential oils from fresh leaves of five Ocimum species from tropical Africa: Ocimum basilicum L., O. gratissimum L., O. americanum L. (syn: O. canum Sims), O. lamiifolium Hochst. ex Benth. and O. minimum L. The chemical compositions of O. basilicum, O. gratissimum and O. minimum essential oils could be related to some chemotypes already defined for these three species: linalool- or methyl chavicol-types for the first species, thymol- or eugenol- or ocimenes/far- nesenes-types for the second one; finally, a high content of methyl chavicol (34.3%) and linalool (17.8%) was found in O. minimum oil, similar to that already described for a Brazilian species. On the other hand, an essential oil dominated by 1,8-cineole was described for the first time for a sample of O. americanum. Finally, the oil of O. lamiifolium, which was rich in sabinene, is chemically described for the first time. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699064#.Ua3GwNgYrOl [article] Variability in the chemical compositions of the essential oils of five ocimum species from tropical african area [texte imprimé] / F. Tchoumbougnang, Auteur ; P. H. Amvam Zollo, Auteur ; F. Avlessi, Auteur . - 2006 . - pp. 194-199. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 2 (Mars-Avril 2006) . - pp. 194-199 Mots-clés : Ocimum  basilicum  Ocimum  gratissimum  Ocimum  americanum  (Ocimum  canum)  Ocimum  lamiifolium  Ocimum  minimum  Essential  oil  composition  1,8-cineole  Linalool  Thymol  Methyl  chavicol  Sabinene  Eugenol  (E,E)-α-farnesene  (Z)-β-ocimene Résumé : As part of our research on aromatic plants from Africa, we have analyzed, via GC and CG/MS, the essential oils from fresh leaves of five Ocimum species from tropical Africa: Ocimum basilicum L., O. gratissimum L., O. americanum L. (syn: O. canum Sims), O. lamiifolium Hochst. ex Benth. and O. minimum L. The chemical compositions of O. basilicum, O. gratissimum and O. minimum essential oils could be related to some chemotypes already defined for these three species: linalool- or methyl chavicol-types for the first species, thymol- or eugenol- or ocimenes/far- nesenes-types for the second one; finally, a high content of methyl chavicol (34.3%) and linalool (17.8%) was found in O. minimum oil, similar to that already described for a Brazilian species. On the other hand, an essential oil dominated by 1,8-cineole was described for the first time for a sample of O. americanum. Finally, the oil of O. lamiifolium, which was rich in sabinene, is chemically described for the first time. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699064#.Ua3GwNgYrOl