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Chemical composition, antioxidant and myorelaxant activity of essential oils of Globba sessiliflora Sims / Ravendra Kumar in The journal of essential oil research, Vol. 24 N° 4 (Août 2012) 

Public ISBD [article]  in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 385-391 Titre : Chemical composition, antioxidant and myorelaxant activity of essential oils of Globba sessiliflora Sims Type de document : texte imprimé Auteurs : Ravendra Kumar, Auteur ; Om Prakash, Auteur ; A.K. Pant, Auteur Année de publication : 2012 Article en page(s) : pp. 385-391 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Globba  sessiliflora  Sims  Zingiberaceae  β-caryophyllene  Myrcene  Longipinene  Selin-11-en-α-ol  Antioxidant  activity  Myorelaxant  activity Résumé : The volatile constituents of the rhizomes and aerial parts of Globba sessiliflora Sims were analyzed by a combination of gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). The major constituents identified in the rhizome oil were β-caryophyllene (20.1%), α-cadinol (14.7%), selin-11-en-4α-ol (12.0%), caryophyllene oxide (8.6%), γ-eudesmol (7.1%) and myrcene (4.7%). The oil from aerial part contained myrcene (15.8%), β-caryophyllene (12.3%), selin-11-en-4α-ol (11.0%), β-longipinene (10.9), manool (8.1%), germacrene D (5.2%) and β-eudesmol (4.1%) as major constituents. Both the oils showed significant myorelaxant effect on isolated duodenum smooth muscles of Wistar rats. The antioxidant activity of the oils were evaluated by different methods, namely reducing power assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and the chelating effect on Fe2+. The oils exhibited good to moderate antioxidant activity in a dose-dependent manner. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692915 [article] Chemical composition, antioxidant and myorelaxant activity of essential oils of Globba sessiliflora Sims [texte imprimé] / Ravendra Kumar, Auteur ; Om Prakash, Auteur ; A.K. Pant, Auteur . - 2012 . - pp. 385-391. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 385-391 Mots-clés : Globba  sessiliflora  Sims  Zingiberaceae  β-caryophyllene  Myrcene  Longipinene  Selin-11-en-α-ol  Antioxidant  activity  Myorelaxant  activity Résumé : The volatile constituents of the rhizomes and aerial parts of Globba sessiliflora Sims were analyzed by a combination of gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). The major constituents identified in the rhizome oil were β-caryophyllene (20.1%), α-cadinol (14.7%), selin-11-en-4α-ol (12.0%), caryophyllene oxide (8.6%), γ-eudesmol (7.1%) and myrcene (4.7%). The oil from aerial part contained myrcene (15.8%), β-caryophyllene (12.3%), selin-11-en-4α-ol (11.0%), β-longipinene (10.9), manool (8.1%), germacrene D (5.2%) and β-eudesmol (4.1%) as major constituents. Both the oils showed significant myorelaxant effect on isolated duodenum smooth muscles of Wistar rats. The antioxidant activity of the oils were evaluated by different methods, namely reducing power assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and the chelating effect on Fe2+. The oils exhibited good to moderate antioxidant activity in a dose-dependent manner. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692915