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Analysis of the volatile constituents of asian hypericum L. (Clusiaceae, Hyperidoideae) species / Betül Demirci in The journal of essential oil research, Vol. 17 N° 6 (Novembre-Décembre 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 659-663 Titre : Analysis of the volatile constituents of asian hypericum L. (Clusiaceae, Hyperidoideae) species Type de document : texte imprimé Auteurs : Betül Demirci, Auteur ; K. Hüsnü Can Baser, Auteur ; Sara L. Crockett, Auteur Année de publication : 2006 Article en page(s) : pp. 659-663 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Hypericum  acmosepalum  Hypericum  beanii  Hypericum  calycinum  Hypericum  choisyanum  Hypericum  forrestii  Hypericum  kouytchense  Hypericum  lancasteri  Hypericum  leschenaultii  Hypericum  monogynum  Hypericum  patulum  Hypericum  pseudohenryi  Hypericum  xmoserianum  St.  John's  Wort  Clusiaceae  Essential  oil  composition  δ-cadinene  Caryophyllene  oxide  Cuparene  Ar-curcumene  Cis-eudesma-6,11-diene  Eudesmadienone  Cis-β-guiaene  γ-muurolene  Myrcene  α-pinene  β-pinene  βselinene  α-terpineol  Tricosane Résumé : Of the 57 species of the economically important genus Hypericum (St. John's Wort; Clusiaceae) occurring in China, only a small percentage have been previously phytochemically investigated. As part of our continuing research on the phytochemistry of Hypericum, the chemical compositions of volatiles isolated from 12 Chinese species were determined. Volatile constituents were isolated by microdistillation of dried and ground aerial material from flowering plants and subsequently analyzed by GC/MS. The major component(s) were identified as follows: ar-curcumene (12.6%) and β-selinene (16.3%) in H. acmosepalum; γ-muurolene (11.3%), β-selinene (16.3%) and caryophyllene oxide (18.7%) in H. beanii; α-terpineol (11.5%) and P-pinene (29.2%) in H. calycinum; cis-eudesma-6,11-diene (11.4%) in H. choisyanum; a-pinene (10.4%) and caryophyllene oxide (12.7%) in H. forrestii; cis-β-guiaene (10.7%) and γ-muurolene (12.4%) in H. kouytchense; β-selinene (11.4%) and eudesmadienone (10.8%) in H. lancasteri; cuparene (24.8%) and γ-muurolene (16.8%) in H. leschenaultii; tricosane (13.3%) and myrcene (10.4%) in H. monogynum; β-selinene (14.7%) in H. patulum; β-selinene (18.5%) in H. pseudohenryi; and γ-muurolene (10.7%) and δ-cadinene (10.2%) in H. X moserianum. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699026#.Ub8REth-Tp8 [article] Analysis of the volatile constituents of asian hypericum L. (Clusiaceae, Hyperidoideae) species [texte imprimé] / Betül Demirci, Auteur ; K. Hüsnü Can Baser, Auteur ; Sara L. Crockett, Auteur . - 2006 . - pp. 659-663. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 659-663 Mots-clés : Hypericum  acmosepalum  Hypericum  beanii  Hypericum  calycinum  Hypericum  choisyanum  Hypericum  forrestii  Hypericum  kouytchense  Hypericum  lancasteri  Hypericum  leschenaultii  Hypericum  monogynum  Hypericum  patulum  Hypericum  pseudohenryi  Hypericum  xmoserianum  St.  John's  Wort  Clusiaceae  Essential  oil  composition  δ-cadinene  Caryophyllene  oxide  Cuparene  Ar-curcumene  Cis-eudesma-6,11-diene  Eudesmadienone  Cis-β-guiaene  γ-muurolene  Myrcene  α-pinene  β-pinene  βselinene  α-terpineol  Tricosane Résumé : Of the 57 species of the economically important genus Hypericum (St. John's Wort; Clusiaceae) occurring in China, only a small percentage have been previously phytochemically investigated. As part of our continuing research on the phytochemistry of Hypericum, the chemical compositions of volatiles isolated from 12 Chinese species were determined. Volatile constituents were isolated by microdistillation of dried and ground aerial material from flowering plants and subsequently analyzed by GC/MS. The major component(s) were identified as follows: ar-curcumene (12.6%) and β-selinene (16.3%) in H. acmosepalum; γ-muurolene (11.3%), β-selinene (16.3%) and caryophyllene oxide (18.7%) in H. beanii; α-terpineol (11.5%) and P-pinene (29.2%) in H. calycinum; cis-eudesma-6,11-diene (11.4%) in H. choisyanum; a-pinene (10.4%) and caryophyllene oxide (12.7%) in H. forrestii; cis-β-guiaene (10.7%) and γ-muurolene (12.4%) in H. kouytchense; β-selinene (11.4%) and eudesmadienone (10.8%) in H. lancasteri; cuparene (24.8%) and γ-muurolene (16.8%) in H. leschenaultii; tricosane (13.3%) and myrcene (10.4%) in H. monogynum; β-selinene (14.7%) in H. patulum; β-selinene (18.5%) in H. pseudohenryi; and γ-muurolene (10.7%) and δ-cadinene (10.2%) in H. X moserianum. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699026#.Ub8REth-Tp8

Analysis of the volatile constituents of five african and mediterranean hypericum L. (Clusiaceae, Hypericoideae) species / Sara L. Crockett in The journal of essential oil research, Vol. 19 N°4 (Juillet/Août 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°4 (Juillet/Août 2007) . - pp. 302-306 Titre : Analysis of the volatile constituents of five african and mediterranean hypericum L. (Clusiaceae, Hypericoideae) species Type de document : texte imprimé Auteurs : Sara L. Crockett, Auteur ; Betül Demirci, Auteur ; K. Hüsnü Can Başer, Auteur Année de publication : 2007 Article en page(s) : pp. 302-306 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Hypericum  aegypticum  ssp.  aegypticum  Hypericum  aegypticum  ssp.  marrocanum  Hypericum  balearicum  Hypericum  delphicum  Hypericum  roeperanum  St.  John's  Wort  Clusiaceae  Hypericoideae  Essential  oil  composition  β-caryophyllene  Caryophyllene  oxide  γ-curcumene  β-eudesmol  Ishwarane  α-pinene  β-pinene  Undecane Résumé : The volatile constituents of five species of the medicinally and ornamentally valuable genus Hypericum L. (St. John's Wort; Clusiaceae), with native distributions in Africa and the Mediterranean regions of Europe and Asia, were examined as part of our continuing research on the phytochemistry of Hypericum. The dried and ground aerial material of flowering plants was subjected to microdistillation to isolate volatile compounds, which were subsequently analyzed by GC/MS. The major constituent(s) of H. balearicum were α-pinene (28.5%), β-pinene (20.4%), and β-eudesmol (11.2%); of H. delphicum were caryophyllene oxide (31.5%), β-caryophyllene (18.2%), and undecane (17.5%); of H. roeperanum was γ-curcumene (15.6%); of H. aegypticum ssp. aegypticum was ishwarane (14.4%); and of H. aegypticum ssp. marrocanum were caryophyllene oxide (29.2%) and β-caryophyllene (15.1%). This paper represents the first report, to our knowledge, of volatile constituents for these species. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699287#.UWu4A0qC5mM [article] Analysis of the volatile constituents of five african and mediterranean hypericum L. (Clusiaceae, Hypericoideae) species [texte imprimé] / Sara L. Crockett, Auteur ; Betül Demirci, Auteur ; K. Hüsnü Can Başer, Auteur . - 2007 . - pp. 302-306. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°4 (Juillet/Août 2007) . - pp. 302-306 Mots-clés : Hypericum  aegypticum  ssp.  aegypticum  Hypericum  aegypticum  ssp.  marrocanum  Hypericum  balearicum  Hypericum  delphicum  Hypericum  roeperanum  St.  John's  Wort  Clusiaceae  Hypericoideae  Essential  oil  composition  β-caryophyllene  Caryophyllene  oxide  γ-curcumene  β-eudesmol  Ishwarane  α-pinene  β-pinene  Undecane Résumé : The volatile constituents of five species of the medicinally and ornamentally valuable genus Hypericum L. (St. John's Wort; Clusiaceae), with native distributions in Africa and the Mediterranean regions of Europe and Asia, were examined as part of our continuing research on the phytochemistry of Hypericum. The dried and ground aerial material of flowering plants was subjected to microdistillation to isolate volatile compounds, which were subsequently analyzed by GC/MS. The major constituent(s) of H. balearicum were α-pinene (28.5%), β-pinene (20.4%), and β-eudesmol (11.2%); of H. delphicum were caryophyllene oxide (31.5%), β-caryophyllene (18.2%), and undecane (17.5%); of H. roeperanum was γ-curcumene (15.6%); of H. aegypticum ssp. aegypticum was ishwarane (14.4%); and of H. aegypticum ssp. marrocanum were caryophyllene oxide (29.2%) and β-caryophyllene (15.1%). This paper represents the first report, to our knowledge, of volatile constituents for these species. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699287#.UWu4A0qC5mM

Volatile constituents of hypericum L. section myriandra (Clusiaceae) / Sara L. Crockett in The journal of essential oil research, Vol. 20 n°3 (Mai/Juin 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 n°3 (Mai/Juin 2008) . - pp. 244-249 Titre : Volatile constituents of hypericum L. section myriandra (Clusiaceae) : Species of the H. fasciculatum lam. alliance Type de document : texte imprimé Auteurs : Sara L. Crockett, Auteur ; Betül Demirci, Auteur ; K. Hüsnü Can Başer, Auteur Année de publication : 2008 Article en page(s) : pp. 244-249 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Hypericum  brachyphyllum  Hypericum  chapmanii  Hypericum  densiflorum  Hypericum  fasciculatum  Hypericum  frondosum  Hypericum  galioides  Hypericum  lloydii  Hypericum  nitidum  ssp.  exile  Hypericum  nitidum  ssp.  nitidum  Hypericum  prolificum  Hypericum  tenuifolium  Clusiaceae  Essential  oil  composition  β-acoradiene  Allo-aromadendrene  β-bisabolene  Caryophyllene  oxide  Decyl  acetate  β-eudesmol  (Z,Z)-farnesol  Guaia-6,10(14)-dien-4-β-ol  α-muurolene  γ-muurolene  (E)-nerolidol  Spathulenol  Undecane Résumé : The chemical composition of the volatiles extracted from eleven (11) closely-related taxa belonging to Hypericum (section Myriandra) native to the southeastern United States were investigated. Microdistillation of dried and ground aerial material, collected from flowering plants, yielded volatile constituents that were subsequently analyzed by GC/MS. The major component(s) were identified as follows: β-bisabolene (53.4%) in H. brachyphyllum; β-eudesmol (31.5%) in H. chapmanii; β-bisabolene (11.7%) and undecane (18.7%) in H. densiflorum; decyl acetate (12.2%) and γ-muurolene (12.7%) in H. fasciculatum; (E)-nerolidol (13.2%), alloaroma-dendrene (18.9%) and caryophyllene oxide (20.7%) in H. frondosum; caryophyllene oxide (12.9%), guaia-6,10(14)-dien-4β-ol (18.5%) and an unidentified component (Unknown A) (21.8%) in H. galioides; caryophyllene oxide (29.3%) in H. lloydii; spathulenol (11.8%) and (Z, Z)-farnesol (45.1%) in H. nitidum ssp. exile; γ-muurolene (19.3%) in H. nitidum ssp. nitidum; α-muurolene (12.4%) and γ-muurolene (20.3%) in H. prolificum; and β-acoradiene (12.9%) and caryophyllene oxide (16.7%) in H. tenuifolium. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700003 [article] Volatile constituents of hypericum L. section myriandra (Clusiaceae) : Species of the H. fasciculatum lam. alliance [texte imprimé] / Sara L. Crockett, Auteur ; Betül Demirci, Auteur ; K. Hüsnü Can Başer, Auteur . - 2008 . - pp. 244-249. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 n°3 (Mai/Juin 2008) . - pp. 244-249 Mots-clés : Hypericum  brachyphyllum  Hypericum  chapmanii  Hypericum  densiflorum  Hypericum  fasciculatum  Hypericum  frondosum  Hypericum  galioides  Hypericum  lloydii  Hypericum  nitidum  ssp.  exile  Hypericum  nitidum  ssp.  nitidum  Hypericum  prolificum  Hypericum  tenuifolium  Clusiaceae  Essential  oil  composition  β-acoradiene  Allo-aromadendrene  β-bisabolene  Caryophyllene  oxide  Decyl  acetate  β-eudesmol  (Z,Z)-farnesol  Guaia-6,10(14)-dien-4-β-ol  α-muurolene  γ-muurolene  (E)-nerolidol  Spathulenol  Undecane Résumé : The chemical composition of the volatiles extracted from eleven (11) closely-related taxa belonging to Hypericum (section Myriandra) native to the southeastern United States were investigated. Microdistillation of dried and ground aerial material, collected from flowering plants, yielded volatile constituents that were subsequently analyzed by GC/MS. The major component(s) were identified as follows: β-bisabolene (53.4%) in H. brachyphyllum; β-eudesmol (31.5%) in H. chapmanii; β-bisabolene (11.7%) and undecane (18.7%) in H. densiflorum; decyl acetate (12.2%) and γ-muurolene (12.7%) in H. fasciculatum; (E)-nerolidol (13.2%), alloaroma-dendrene (18.9%) and caryophyllene oxide (20.7%) in H. frondosum; caryophyllene oxide (12.9%), guaia-6,10(14)-dien-4β-ol (18.5%) and an unidentified component (Unknown A) (21.8%) in H. galioides; caryophyllene oxide (29.3%) in H. lloydii; spathulenol (11.8%) and (Z, Z)-farnesol (45.1%) in H. nitidum ssp. exile; γ-muurolene (19.3%) in H. nitidum ssp. nitidum; α-muurolene (12.4%) and γ-muurolene (20.3%) in H. prolificum; and β-acoradiene (12.9%) and caryophyllene oxide (16.7%) in H. tenuifolium. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700003