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Chemical composition and antimicrobial activity of the commercially available oil of luma chequen (Molina) A. gray / Maria José Gonçalves in The journal of essential oil research, Vol. 18 N° 1 (Janvier-Fevrier 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 1 (Janvier-Fevrier 2006) . - pp. 108-110 Titre : Chemical composition and antimicrobial activity of the commercially available oil of luma chequen (Molina) A. gray Type de document : texte imprimé Auteurs : Maria José Gonçalves, Auteur ; Carlos Cavaleiro, Auteur ; António Proença Da Cunha, Auteur Année de publication : 2006 Article en page(s) : pp. 108-110 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Luma  chequen  “arrayan”  Myrtaceae  Essential  oil  composition  α-pinene  1,8-cineole  Antimicrobial  activity Résumé : The composition and the antimicrobial activity of the essential oil of Luma chequen from Peru were investigated. Essential oil was analyzed by GC and GC/MS. The oil was characterized by the presence of small amounts of sesquiterpenes (3.1%), and large amounts of monoterpenes (90.1%), of which α-pinene (57.1%), 1,8-cineole (12.1%) and linalool (5.5%) were the major compounds. The oil showed significant antimicrobial activity against Proteus vulgaris, Cryptococcus neoformans and Cladosporium cladosporioides, with MIC values ranging from 0.45 to 1.67 μL/mL. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699402#.Ua8aE9gYrOl [article] Chemical composition and antimicrobial activity of the commercially available oil of luma chequen (Molina) A. gray [texte imprimé] / Maria José Gonçalves, Auteur ; Carlos Cavaleiro, Auteur ; António Proença Da Cunha, Auteur . - 2006 . - pp. 108-110. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 1 (Janvier-Fevrier 2006) . - pp. 108-110 Mots-clés : Luma  chequen  “arrayan”  Myrtaceae  Essential  oil  composition  α-pinene  1,8-cineole  Antimicrobial  activity Résumé : The composition and the antimicrobial activity of the essential oil of Luma chequen from Peru were investigated. Essential oil was analyzed by GC and GC/MS. The oil was characterized by the presence of small amounts of sesquiterpenes (3.1%), and large amounts of monoterpenes (90.1%), of which α-pinene (57.1%), 1,8-cineole (12.1%) and linalool (5.5%) were the major compounds. The oil showed significant antimicrobial activity against Proteus vulgaris, Cryptococcus neoformans and Cladosporium cladosporioides, with MIC values ranging from 0.45 to 1.67 μL/mL. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699402#.Ua8aE9gYrOl

Essential oil composition and antimicrobial activity of ageratum conyzoides from S. tomé and príncipe / Ana Paula Martins in The journal of essential oil research, Vol. 17 N° 3 (Mai-Juin 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 3 (Mai-Juin 2005) . - pp. 239-242 Titre : Essential oil composition and antimicrobial activity of ageratum conyzoides from S. tomé and príncipe Type de document : texte imprimé Auteurs : Ana Paula Martins, Auteur ; Lígia R. Salgueiro, Auteur ; Maria José Gonçalves, Auteur Année de publication : 2006 Article en page(s) : pp. 239-242 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Ageratum  conyzoides  Asteraceae  Fiá-malé-homem  Essential  oil  composition  Precocene  I  β-caryophyllene  Antimicrobial  activity Résumé : The essential oil of Ageratum conyzoides from S. Tomé and Príncipe was investigated for the first time. The oil was obtained by hydrodistillation of the aerial parts, and subsequently analyzed by GC, GC/MS and 13C-NMR. The oil was characterized by the presence of high percentages of precocene I (34.4%) and β-caryophyllene (24.6%), as well as small amounts of precocene II. Using the disk diffusion method, the oil of A. conyzoides showed weak activity against Staphylococcus aureus, S. epidermidis, Streptococcus faecalis, Proteus vulgaris and Cladosporium cladosporioides, and was inactive against Escherichia coli, Candida albicans, Cryptococcus neoformans, Aspergillus niger and A. fumigatus. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698888#.UeJ7mGF2_n4 [article] Essential oil composition and antimicrobial activity of ageratum conyzoides from S. tomé and príncipe [texte imprimé] / Ana Paula Martins, Auteur ; Lígia R. Salgueiro, Auteur ; Maria José Gonçalves, Auteur . - 2006 . - pp. 239-242. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 3 (Mai-Juin 2005) . - pp. 239-242 Mots-clés : Ageratum  conyzoides  Asteraceae  Fiá-malé-homem  Essential  oil  composition  Precocene  I  β-caryophyllene  Antimicrobial  activity Résumé : The essential oil of Ageratum conyzoides from S. Tomé and Príncipe was investigated for the first time. The oil was obtained by hydrodistillation of the aerial parts, and subsequently analyzed by GC, GC/MS and 13C-NMR. The oil was characterized by the presence of high percentages of precocene I (34.4%) and β-caryophyllene (24.6%), as well as small amounts of precocene II. Using the disk diffusion method, the oil of A. conyzoides showed weak activity against Staphylococcus aureus, S. epidermidis, Streptococcus faecalis, Proteus vulgaris and Cladosporium cladosporioides, and was inactive against Escherichia coli, Candida albicans, Cryptococcus neoformans, Aspergillus niger and A. fumigatus. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698888#.UeJ7mGF2_n4