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Essential oil composition of santolina oblongifolia boiss. from Spain / Jesús Palá-Paúl in The journal of essential oil research, Vol. 20 N°1 (Janvier/Fevrier 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 65-68 Titre : Essential oil composition of santolina oblongifolia boiss. from Spain : An iberian peninsula endemic species Type de document : texte imprimé Auteurs : Jesús Palá-Paúl, Auteur ; Ma José Pérez-Alonso, Auteur ; Arturo Velasco-Negueruela, Auteur Année de publication : 2008 Article en page(s) : pp. 65-68 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Santolina  oblongifolia  Asteraceae  Essential  oil  composition  Bejarol Résumé : The essential oil isolated from the aerial parts of Gredos' camomile (Santolina oblongifolia) by hydrodistillation has been analyzed by gas chromatography and gas chromatography coupled to mass spectrometry. The essential oil composition was very complex. A total of 94 compounds have been identified, all of which with percentage compositions lower than 10%. The main constituents of the oil were identified as borneol (8.8%), cis-β-guaiene (5.9%), myrcene (5.4%), limonene (5.2%), β-oplopenone (4.7%) and β-pinene (4.5%). Monoterpene and sesquiterpene compounds were present in similar amounts in the oil (37.0% and 35.3%, respectively). Most monoterpenes were hydrocarbons (20.1%) while in the sesquiterpene fraction was predominated by oxygenated compounds (22.6%). A new possible bejarol isomers and a bejarol derivative have been detected in low amounts. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699424 [article] Essential oil composition of santolina oblongifolia boiss. from Spain : An iberian peninsula endemic species [texte imprimé] / Jesús Palá-Paúl, Auteur ; Ma José Pérez-Alonso, Auteur ; Arturo Velasco-Negueruela, Auteur . - 2008 . - pp. 65-68. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 65-68 Mots-clés : Santolina  oblongifolia  Asteraceae  Essential  oil  composition  Bejarol Résumé : The essential oil isolated from the aerial parts of Gredos' camomile (Santolina oblongifolia) by hydrodistillation has been analyzed by gas chromatography and gas chromatography coupled to mass spectrometry. The essential oil composition was very complex. A total of 94 compounds have been identified, all of which with percentage compositions lower than 10%. The main constituents of the oil were identified as borneol (8.8%), cis-β-guaiene (5.9%), myrcene (5.4%), limonene (5.2%), β-oplopenone (4.7%) and β-pinene (4.5%). Monoterpene and sesquiterpene compounds were present in similar amounts in the oil (37.0% and 35.3%, respectively). Most monoterpenes were hydrocarbons (20.1%) while in the sesquiterpene fraction was predominated by oxygenated compounds (22.6%). A new possible bejarol isomers and a bejarol derivative have been detected in low amounts. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699424

Seasonal variation in chemical composition of cistus albidus L. from Spain / Jesús Palá-Paúl in The journal of essential oil research, Vol. 17 N° 1 (Janvier-Fevrier 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 1 (Janvier-Fevrier 2005) . - pp. 19-22 Titre : Seasonal variation in chemical composition of cistus albidus L. from Spain Type de document : texte imprimé Auteurs : Jesús Palá-Paúl, Auteur ; Arturo Velasco-Negueruela, Auteur ; Ma José Pérez-Alonso, Auteur Année de publication : 2006 Article en page(s) : pp. 19-22 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Cistus  albidus  Cistaceae  Essential  oil  composition  Aromadendrene  Ar-curcumene  Zingiberene  Guaiol  α-cadinol  Seasonal  variation Résumé : The chemical composition of the oils of two samples of the same population of Cistus albidus gathered in Spain during winter and spring, have been analyzed by GC and GC/MS. All the samples were characterized by a high percentage of sesquiterpenes while monoterpenes were totally absent. Most of the differences detected in the flower oils (SF) were quantitative, although small qualitative ones were also found. The principal compounds of the winter leaf oils (WL) were identified as zingiberene (14.8%), aromadendrene (10.6%), ar-curcumene (10.6%) and guaiol (6.5%), whereas the oil from the spring leaves (SL) contained as main constituents aromadendrene (9.2%), ar-curcumene (8.8%), zingiberene (8.0%) and guaiol (7.0%). The flower oils also contained these components but the major ones were found to be α-cadinol (8.4%) and zingiberene (8.1%). The seeds of this species were the part of the plant with less yield oil. As far as we know, this is the first report about the seasonal variation on the chemical composition of the oil of this species isolated by hydrodistillation and analyzed by GC and GC/MS. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698818 [article] Seasonal variation in chemical composition of cistus albidus L. from Spain [texte imprimé] / Jesús Palá-Paúl, Auteur ; Arturo Velasco-Negueruela, Auteur ; Ma José Pérez-Alonso, Auteur . - 2006 . - pp. 19-22. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 1 (Janvier-Fevrier 2005) . - pp. 19-22 Mots-clés : Cistus  albidus  Cistaceae  Essential  oil  composition  Aromadendrene  Ar-curcumene  Zingiberene  Guaiol  α-cadinol  Seasonal  variation Résumé : The chemical composition of the oils of two samples of the same population of Cistus albidus gathered in Spain during winter and spring, have been analyzed by GC and GC/MS. All the samples were characterized by a high percentage of sesquiterpenes while monoterpenes were totally absent. Most of the differences detected in the flower oils (SF) were quantitative, although small qualitative ones were also found. The principal compounds of the winter leaf oils (WL) were identified as zingiberene (14.8%), aromadendrene (10.6%), ar-curcumene (10.6%) and guaiol (6.5%), whereas the oil from the spring leaves (SL) contained as main constituents aromadendrene (9.2%), ar-curcumene (8.8%), zingiberene (8.0%) and guaiol (7.0%). The flower oils also contained these components but the major ones were found to be α-cadinol (8.4%) and zingiberene (8.1%). The seeds of this species were the part of the plant with less yield oil. As far as we know, this is the first report about the seasonal variation on the chemical composition of the oil of this species isolated by hydrodistillation and analyzed by GC and GC/MS. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698818

Volatile constituents of ridolfia segetum (L.) moris gathered in Central Spain / Jesús Palá-Paúl in The journal of essential oil research, Vol. 17 N° 2 (Mars-Avril 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 2 (Mars-Avril 2005) . - pp. 119-121 Titre : Volatile constituents of ridolfia segetum (L.) moris gathered in Central Spain : Castilla la mancha province Type de document : texte imprimé Auteurs : Jesús Palá-Paúl, Auteur ; Arturo Velasco-Negueruela, Auteur ; Ma José Pérez-Alonso, Auteur Année de publication : 2006 Article en page(s) : pp. 119-121 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Ridolfia  segetum  Apiaceae  Essential  oil  composition  α-pinene  β-pinene  Myrcene  α-phellandrene  p-cymene  (Z)-β-ocimene  Terpinolene  Dillapiole Résumé : The oils isolated from the aerial parts of Ridolfia segetum (L.) Moris (Apiaceae) gathered in Castilla la Mancha (Spain) were analyzed by capillary GC and GC/MS. The oil from the flowers was dominated by α-phellandrene (32.0–33.8%), terpinolene (18.0–21.4%) and (Z)-β-ocimene (12.4–14.5%), while the main components of the fruit oils were found to be dillapiole (5.1–39.6%), β-pinene (10.3–20.9%), α-pinene (3.0–16.1%), α-phellandrene (13.7–15.3%) and (Z)-β-ocimene (8.1–12.8%). The oil from the stems was characterized by a high content of p-cymene (15.1–79.5%), (Z)-β-ocimene(0.9–38.5%) and α-phellandrene (1.1–14.4%), whereas the oil from the leaves was shown to contain p-cymene (8.8–83.6%), (Z)-β-ocimene (t-32.6%), myrcene (t-12.5%) and β-pinene (2.1–12.1%) as major constituents. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698848#.UjrlHmF2_n4 [article] Volatile constituents of ridolfia segetum (L.) moris gathered in Central Spain : Castilla la mancha province [texte imprimé] / Jesús Palá-Paúl, Auteur ; Arturo Velasco-Negueruela, Auteur ; Ma José Pérez-Alonso, Auteur . - 2006 . - pp. 119-121. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 2 (Mars-Avril 2005) . - pp. 119-121 Mots-clés : Ridolfia  segetum  Apiaceae  Essential  oil  composition  α-pinene  β-pinene  Myrcene  α-phellandrene  p-cymene  (Z)-β-ocimene  Terpinolene  Dillapiole Résumé : The oils isolated from the aerial parts of Ridolfia segetum (L.) Moris (Apiaceae) gathered in Castilla la Mancha (Spain) were analyzed by capillary GC and GC/MS. The oil from the flowers was dominated by α-phellandrene (32.0–33.8%), terpinolene (18.0–21.4%) and (Z)-β-ocimene (12.4–14.5%), while the main components of the fruit oils were found to be dillapiole (5.1–39.6%), β-pinene (10.3–20.9%), α-pinene (3.0–16.1%), α-phellandrene (13.7–15.3%) and (Z)-β-ocimene (8.1–12.8%). The oil from the stems was characterized by a high content of p-cymene (15.1–79.5%), (Z)-β-ocimene(0.9–38.5%) and α-phellandrene (1.1–14.4%), whereas the oil from the leaves was shown to contain p-cymene (8.8–83.6%), (Z)-β-ocimene (t-32.6%), myrcene (t-12.5%) and β-pinene (2.1–12.1%) as major constituents. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698848#.UjrlHmF2_n4