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Chemical composition of essential oils from ripe and unripe fruits of piper amalago L. var. medium (Jacq.) yunck and piper hispidum Sw. / Maria Lúcia Ferreira Simeone in The journal of essential oil research, Vol. 23 N° 5 (Septembre/Octobre 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 5 (Septembre/Octobre 2011) . - pp. 54-58 Titre : Chemical composition of essential oils from ripe and unripe fruits of piper amalago L. var. medium (Jacq.) yunck and piper hispidum Sw. Type de document : texte imprimé Auteurs : Maria Lúcia Ferreira Simeone, Auteur ; Sandra Bos Mikich, Auteur ; Lílian Cristina Côcco, Auteur Année de publication : 2012 Article en page(s) : pp. 54-58 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Piperaceae  Piper  amalago  L.  var.  medium  (Jacq.)  yunck  Piper  hispidum  Sw  Essential  oil  composition  α-pinene  β-pinene  α-copaene  (E)-nerolidol  Germacrene  d-4-ol  α-cadinol Index. décimale : 646 Résumé : The chemical composition of essential oils from unripe and ripe fruits of Piper amalago L. var. medium (Jacq.) Yunck and Piper hispidum Sw. was examined using GC/MS analysis. The analysis of oils from P. amalago revealed a predominance of oxygenated sesquiterpenes and 65 compounds were identified; their main constituents are: (E)- nerolidol (14.2% and 19.9%), germacrene-D-4-ol (10.3% and 12.7%), α-cadinol (11.1% and 8.2%) in 99.6% and 98.7% of the compounds for unripe and ripe fruits, respectively. Piper hispidum revealed a predominance of sesquiterpene hydrocarbons, from which we identified 53 compounds including: α-copaene (28.7% and 36.2%), α-pinene (13.9% and 7.1%), α-pinene (13.3% and 7.5%), and (E)-nerolidol (2.9% and 7.0%) which represented 97.8% and 98.1% of the compound constituents for unripe and ripe fruits, respectively. The essential oils of fruits of P. amalago and P. hispidum are reported for the first time. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700483 [article] Chemical composition of essential oils from ripe and unripe fruits of piper amalago L. var. medium (Jacq.) yunck and piper hispidum Sw. [texte imprimé] / Maria Lúcia Ferreira Simeone, Auteur ; Sandra Bos Mikich, Auteur ; Lílian Cristina Côcco, Auteur . - 2012 . - pp. 54-58. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 5 (Septembre/Octobre 2011) . - pp. 54-58 Mots-clés : Piperaceae  Piper  amalago  L.  var.  medium  (Jacq.)  yunck  Piper  hispidum  Sw  Essential  oil  composition  α-pinene  β-pinene  α-copaene  (E)-nerolidol  Germacrene  d-4-ol  α-cadinol Index. décimale : 646 Résumé : The chemical composition of essential oils from unripe and ripe fruits of Piper amalago L. var. medium (Jacq.) Yunck and Piper hispidum Sw. was examined using GC/MS analysis. The analysis of oils from P. amalago revealed a predominance of oxygenated sesquiterpenes and 65 compounds were identified; their main constituents are: (E)- nerolidol (14.2% and 19.9%), germacrene-D-4-ol (10.3% and 12.7%), α-cadinol (11.1% and 8.2%) in 99.6% and 98.7% of the compounds for unripe and ripe fruits, respectively. Piper hispidum revealed a predominance of sesquiterpene hydrocarbons, from which we identified 53 compounds including: α-copaene (28.7% and 36.2%), α-pinene (13.9% and 7.1%), α-pinene (13.3% and 7.5%), and (E)-nerolidol (2.9% and 7.0%) which represented 97.8% and 98.1% of the compound constituents for unripe and ripe fruits, respectively. The essential oils of fruits of P. amalago and P. hispidum are reported for the first time. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700483