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Analysis of the essential oil of dialium guineense willd / Emmanuel Essien in The journal of essential oil research, Vol. 19 N°6 (Novembre/Decembre 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 545-547 Titre : Analysis of the essential oil of dialium guineense willd Type de document : texte imprimé Auteurs : Emmanuel Essien, Auteur ; Isiaka, A. Ogunwande, Auteur ; Akinola O. Ogunbinu, Auteur Année de publication : 2008 Article en page(s) : pp. 545-547 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Dialium  guineense  Cesalpiniaceae  Essential  oil  composition  Precocene  I Résumé : The essential oil of Dialium guineense Willd., grown in Nigeria has been studied by GC and GC/MS. Precocene I (78.8%) was the most singly abundant constituent, with a significant proportion of β-caryophyllene (5.3%). With the exception of valencene and cadalene, all other constituents were present in amount less than 1%. The large content of precocene I in the oil is of taxonomic interest. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699327#.UXJZFkqC5mM [article] Analysis of the essential oil of dialium guineense willd [texte imprimé] / Emmanuel Essien, Auteur ; Isiaka, A. Ogunwande, Auteur ; Akinola O. Ogunbinu, Auteur . - 2008 . - pp. 545-547. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 545-547 Mots-clés : Dialium  guineense  Cesalpiniaceae  Essential  oil  composition  Precocene  I Résumé : The essential oil of Dialium guineense Willd., grown in Nigeria has been studied by GC and GC/MS. Precocene I (78.8%) was the most singly abundant constituent, with a significant proportion of β-caryophyllene (5.3%). With the exception of valencene and cadalene, all other constituents were present in amount less than 1%. The large content of precocene I in the oil is of taxonomic interest. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699327#.UXJZFkqC5mM

Sesquiterpenes-rich essential oils of polyalthia longifolia thw. (Annonaceae) from Nigeria / Akinola O. Ogunbinu in The journal of essential oil research, Vol. 19 N°5 (Septembre/Octobre 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°5 (Septembre/Octobre 2007) . - pp. 419-421 Titre : Sesquiterpenes-rich essential oils of polyalthia longifolia thw. (Annonaceae) from Nigeria Type de document : texte imprimé Auteurs : Akinola O. Ogunbinu, Auteur ; Isiaka, A. Ogunwande, Auteur ; Emmanuel Essien, Auteur Année de publication : 2007 Article en page(s) : pp. 419-421 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Polyalthia  longifolia  Annonaceae  Essential  oil  composition  Allo-aromadendrene  Caryophyllene  oxide  β-caryo-phyllene Résumé : The essential oils of the leaf and stem bark of Polyalthia longifolia Thw. (Annonaceae) have been studied for their constituents by means of GC and GC/MS. The leaf oil was almost exclusively composed of sesquiterpene derivatives, being represented by allo-aromadendrene (19.7%), caryophyllene oxide (14.4%), β-caryophyllene (13.0%), β-selinene (7.9%), α-humulene (7.0%) and ar-curcumene (6.8%). However, α-copaene and α-muurolol (ca. 8.7%), β-selinene (8.6%), viridiflorene (8.1%), α-guaiene (7.8%), allo-aromadendrene (7.4%) and δ-cadinene (7.0%) were the major constituents occurring in the oil of the bark sample. All the other sesquiterpenoid compounds were observed in amount greater than 1%. α-Pinene (0.5%) and camphene (tr), which are the two monoterpenoids present in the leaf oil, could not be detected from the bark essential oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699941#.UXAsdUqC5mM [article] Sesquiterpenes-rich essential oils of polyalthia longifolia thw. (Annonaceae) from Nigeria [texte imprimé] / Akinola O. Ogunbinu, Auteur ; Isiaka, A. Ogunwande, Auteur ; Emmanuel Essien, Auteur . - 2007 . - pp. 419-421. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°5 (Septembre/Octobre 2007) . - pp. 419-421 Mots-clés : Polyalthia  longifolia  Annonaceae  Essential  oil  composition  Allo-aromadendrene  Caryophyllene  oxide  β-caryo-phyllene Résumé : The essential oils of the leaf and stem bark of Polyalthia longifolia Thw. (Annonaceae) have been studied for their constituents by means of GC and GC/MS. The leaf oil was almost exclusively composed of sesquiterpene derivatives, being represented by allo-aromadendrene (19.7%), caryophyllene oxide (14.4%), β-caryophyllene (13.0%), β-selinene (7.9%), α-humulene (7.0%) and ar-curcumene (6.8%). However, α-copaene and α-muurolol (ca. 8.7%), β-selinene (8.6%), viridiflorene (8.1%), α-guaiene (7.8%), allo-aromadendrene (7.4%) and δ-cadinene (7.0%) were the major constituents occurring in the oil of the bark sample. All the other sesquiterpenoid compounds were observed in amount greater than 1%. α-Pinene (0.5%) and camphene (tr), which are the two monoterpenoids present in the leaf oil, could not be detected from the bark essential oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699941#.UXAsdUqC5mM