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Chemotypes in melaleuca quinquenervia (Cav.) S.T. blake (Niaouli) from benin using multivariate statistical analysis of their essential oils / J. D. Gbenou in The journal of essential oil research, Vol. 19 N°2 (Mars-Avril 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°2 (Mars-Avril 2007) . - pp. 101-104 Titre : Chemotypes in melaleuca quinquenervia (Cav.) S.T. blake (Niaouli) from benin using multivariate statistical analysis of their essential oils Type de document : texte imprimé Auteurs : J. D. Gbenou, Auteur ; M. Moudachirou, Auteur ; Jean-Claude Chalchat, Auteur Année de publication : 2007 Article en page(s) : pp. 101-104 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Melaleuca  quinquenervia  Myrtaceae  Essential  oil  composition  Multivariate  statistical  analysis  Chemotypes  1,8-cineole  Viridiflorol  Seasonal  influence Résumé : Forty compounds have been characterized by GC and GC/MS and relative retention times in 300 samples of Niaouli (Melaleuca quinquenervia) oils collected on 75 different trees during four seasons. Twenty-one compounds were submitted to multivariate statistical analyses using Principal Component Analysis (PCA). Factorial Discriminant Analysis (FDA) revealed the presence of three chemotypes. Chemotype I is already known (1,8-cineole; 50%), chemo-type II had an equal content in 1,8-cineole (33%) and viridiflorol (32%). The third (chemotype III) was characterized by a high content in viridiflorol (50%). The 1,8-cineole chemotype represented 58% of three populations. Seasonal differentiation does not occur, showing that Niaouli oil composition is stable all year. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699239 [article] Chemotypes in melaleuca quinquenervia (Cav.) S.T. blake (Niaouli) from benin using multivariate statistical analysis of their essential oils [texte imprimé] / J. D. Gbenou, Auteur ; M. Moudachirou, Auteur ; Jean-Claude Chalchat, Auteur . - 2007 . - pp. 101-104. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°2 (Mars-Avril 2007) . - pp. 101-104 Mots-clés : Melaleuca  quinquenervia  Myrtaceae  Essential  oil  composition  Multivariate  statistical  analysis  Chemotypes  1,8-cineole  Viridiflorol  Seasonal  influence Résumé : Forty compounds have been characterized by GC and GC/MS and relative retention times in 300 samples of Niaouli (Melaleuca quinquenervia) oils collected on 75 different trees during four seasons. Twenty-one compounds were submitted to multivariate statistical analyses using Principal Component Analysis (PCA). Factorial Discriminant Analysis (FDA) revealed the presence of three chemotypes. Chemotype I is already known (1,8-cineole; 50%), chemo-type II had an equal content in 1,8-cineole (33%) and viridiflorol (32%). The third (chemotype III) was characterized by a high content in viridiflorol (50%). The 1,8-cineole chemotype represented 58% of three populations. Seasonal differentiation does not occur, showing that Niaouli oil composition is stable all year. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699239