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Essential oil composition of hypericum perforatum L. from cultivated source / R. S. Chauhan in The journal of essential oil research, Vol. 23 N° 3 (Mai/Juin 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 20-25 Titre : Essential oil composition of hypericum perforatum L. from cultivated source Type de document : texte imprimé Auteurs : R. S. Chauhan, Auteur ; R. K. Vashistha, Auteur ; M. C. Nautiyal, Auteur Année de publication : 2011 Article en page(s) : pp. 20-25 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Antidepressant  β-caryophyllene  Chemotypes  Cultivation  Essential  oil  composition  Germacrene  D  H.  perforatum Index. décimale : 646 Résumé : Hypericum perforatum L. (Hypericaceae) is the most commercially important species within the genus Hypericum. A wild strain was cultivated at Pothiwasa (2200 m), Uttarakhand, India. Aerial parts were collected (the upper two-thirds) during the flowering phenophase and used to extract the essential oil by means of a Clevenger-type apparatus. Forty compounds constituting 91.0% of the total volatile oil were identified using GC-FID and GC/MS analysis. The major constituent of the essential oil was germacrene D (22.1%), whereas other important constituents were found to be β-caryophyllene (11.3%), α-pinene (8.6%), α-cadinol (4.4%), β-pinene (3.8%), 2-methyl-octane (3.7%), terpinen-4-ol (3.3%), caryophyllene oxide (3.3%), α-muurolol (2.9%) and spathulenol (2.8%). The chemical composition of the oil varied qualitatively and quantitatively as compared to previous investigations. The peculiarity of the oil composition from the sample investigated in this paper may be attributed to environmental factors, such as soil nutrient status and growth environment, as well as to the genetic features of the cultivated strain. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700452 [article] Essential oil composition of hypericum perforatum L. from cultivated source [texte imprimé] / R. S. Chauhan, Auteur ; R. K. Vashistha, Auteur ; M. C. Nautiyal, Auteur . - 2011 . - pp. 20-25. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 20-25 Mots-clés : Antidepressant  β-caryophyllene  Chemotypes  Cultivation  Essential  oil  composition  Germacrene  D  H.  perforatum Index. décimale : 646 Résumé : Hypericum perforatum L. (Hypericaceae) is the most commercially important species within the genus Hypericum. A wild strain was cultivated at Pothiwasa (2200 m), Uttarakhand, India. Aerial parts were collected (the upper two-thirds) during the flowering phenophase and used to extract the essential oil by means of a Clevenger-type apparatus. Forty compounds constituting 91.0% of the total volatile oil were identified using GC-FID and GC/MS analysis. The major constituent of the essential oil was germacrene D (22.1%), whereas other important constituents were found to be β-caryophyllene (11.3%), α-pinene (8.6%), α-cadinol (4.4%), β-pinene (3.8%), 2-methyl-octane (3.7%), terpinen-4-ol (3.3%), caryophyllene oxide (3.3%), α-muurolol (2.9%) and spathulenol (2.8%). The chemical composition of the oil varied qualitatively and quantitatively as compared to previous investigations. The peculiarity of the oil composition from the sample investigated in this paper may be attributed to environmental factors, such as soil nutrient status and growth environment, as well as to the genetic features of the cultivated strain. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700452