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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

Essential oil composition of Morina longifolia Wall. ex DC. from the Himalayan region / R. S. Chauhan in The journal of essential oil research, Vol. 24 N° 5 (Octobre 2012) 

Public ISBD [article]  in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 461-463 Titre : Essential oil composition of Morina longifolia Wall. ex DC. from the Himalayan region Type de document : texte imprimé Auteurs : R. S. Chauhan, Auteur ; M. C. Nautiyal, Auteur ; A. Tava, Auteur Année de publication : 2013 Article en page(s) : pp. 461-463 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Bicyclogermacrene  Essential  oil  composition  Germacrene  D  Limonene  Morina  longifolia  Morinaceae  Myrcene  Terpenes Résumé : Morina longifolia Wall. ex DC. is an important aromatic plant that is also well-known in ethnomedicine in the Himalayan region. The aerial parts of the plant were collected during the flowering stage and steam distilled in order to characterize the essential oil composition. Thirty-three compounds constituting 94.2% of the total volatiles were identified using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS). The major constituent of the volatile fraction was β-myrcene (42.5%), whereas other important constituents were bicyclogermacrene (8.9%), germacrene D (6.7%) and limonene (6.3%). The characterization of the essential oil might help out to establish new potential applications for this species, both as herbal supplement and as fragrance agent. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703500 [article] Essential oil composition of Morina longifolia Wall. ex DC. from the Himalayan region [texte imprimé] / R. S. Chauhan, Auteur ; M. C. Nautiyal, Auteur ; A. Tava, Auteur . - 2013 . - pp. 461-463. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 461-463 Mots-clés : Bicyclogermacrene  Essential  oil  composition  Germacrene  D  Limonene  Morina  longifolia  Morinaceae  Myrcene  Terpenes Résumé : Morina longifolia Wall. ex DC. is an important aromatic plant that is also well-known in ethnomedicine in the Himalayan region. The aerial parts of the plant were collected during the flowering stage and steam distilled in order to characterize the essential oil composition. Thirty-three compounds constituting 94.2% of the total volatiles were identified using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS). The major constituent of the volatile fraction was β-myrcene (42.5%), whereas other important constituents were bicyclogermacrene (8.9%), germacrene D (6.7%) and limonene (6.3%). The characterization of the essential oil might help out to establish new potential applications for this species, both as herbal supplement and as fragrance agent. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703500