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Essential oils of two calamintha glandulosa (Req.) bentham chemotypes in a wild population from zakynthos, Greece / Catherine M. Cook in The journal of essential oil research, Vol. 19 N°6 (Novembre/Decembre 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 534-539 Titre : Essential oils of two calamintha glandulosa (Req.) bentham chemotypes in a wild population from zakynthos, Greece Type de document : texte imprimé Auteurs : Catherine M. Cook, Auteur ; Thomas Lanaras, Auteur ; Stella Kokkini, Auteur Année de publication : 2008 Article en page(s) : pp. 534-539 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Calamintha  glandulosa  Lamiaceae  Essential  oil  composition  Pulegone  Menthone  Isomenthone  Piperitenone  Piperitenone  oxide  Piperitone  Trans-piperitone  oxide Résumé : The co-occurrence of individual Calamintha glandulosa (Req.) Bentham plants of two different chemotype within the same population is reported. The main constituents of the essential oil of plants of Chemotype I, were, cis- and trans-piperitone oxide, limonene and piperitenone oxide and of Chemotype II, were, menthone, pulegone, piperitenone and piperitone II chemotypes were conserved in cultivated plants. The end-products of monoterpene biosynthesis in April (vegetative stage) were trans-piperitone oxide and menthone in Chemotype I and II, respectively while in early September (flowering) there was an increase in precursory intermediates and their related biosynthetic products, i.e. limonene and piperitenone oxide in Chemotype I and pulegone, piperitenone and piperitone in Chemotype II. Differences in the percentage composition of the main oil constituents were observed between the oils from the different organs of plants in the same developmental stage and between the same organs in different developmental stages. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699324#.UXFlBUqC5mM [article] Essential oils of two calamintha glandulosa (Req.) bentham chemotypes in a wild population from zakynthos, Greece [texte imprimé] / Catherine M. Cook, Auteur ; Thomas Lanaras, Auteur ; Stella Kokkini, Auteur . - 2008 . - pp. 534-539. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 534-539 Mots-clés : Calamintha  glandulosa  Lamiaceae  Essential  oil  composition  Pulegone  Menthone  Isomenthone  Piperitenone  Piperitenone  oxide  Piperitone  Trans-piperitone  oxide Résumé : The co-occurrence of individual Calamintha glandulosa (Req.) Bentham plants of two different chemotype within the same population is reported. The main constituents of the essential oil of plants of Chemotype I, were, cis- and trans-piperitone oxide, limonene and piperitenone oxide and of Chemotype II, were, menthone, pulegone, piperitenone and piperitone II chemotypes were conserved in cultivated plants. The end-products of monoterpene biosynthesis in April (vegetative stage) were trans-piperitone oxide and menthone in Chemotype I and II, respectively while in early September (flowering) there was an increase in precursory intermediates and their related biosynthetic products, i.e. limonene and piperitenone oxide in Chemotype I and pulegone, piperitenone and piperitone in Chemotype II. Differences in the percentage composition of the main oil constituents were observed between the oils from the different organs of plants in the same developmental stage and between the same organs in different developmental stages. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699324#.UXFlBUqC5mM

Mentha spicata essential oils rich In 1,8-cineole and 1,2-epoxy-p-menthane derivatives from zakynthos (Ionian Island, W Greece) / Catherine M. Cook in The journal of essential oil research, Vol. 19 N°3 (Mai/Juin 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°3 (Mai/Juin 2007) . - pp. 225-230 Titre : Mentha spicata essential oils rich In 1,8-cineole and 1,2-epoxy-p-menthane derivatives from zakynthos (Ionian Island, W Greece) Type de document : texte imprimé Auteurs : Catherine M. Cook, Auteur ; Stella Kokkini, Auteur ; Thomas Lanaras, Auteur Année de publication : 2007 Article en page(s) : pp. 225-230 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Mentha  spicata  Lamiaceae  Essential  oil  composition  Trans-piperitone  oxide  Piperitenone  oxide  1,8-cineole Résumé : Wild Mentha spicata plants from 3 locations on the Island of Zakynthos had essential oil yields (mL/100g DW) ranging from 0.5–1.1 %. The main oil constituents were trans-piperitone oxide, piperitenone oxide and 1,8-cineole. On a whole plant basis (aerial parts) the trans-piperitone oxide content ranged from 1.4 % location (Loc 1) to 32.5% (Loc 3) and appeared to have an inverse relationship with the 1,8-cineole content which ranged from 10.8 % (Loc 3) to 37.9 % (Loc 1). 1,8-cineole was the major oil constituent (37.9 %) of M. spicata plants from Loc 1. The major constituent of the inflorescence oils was piperitenone oxide which ranged from 32.4 % (Loc 3) to 46.3 % of the oil (Loc 1). The major constituent of the leaf oils was 1,8-cineole (40.5 %) in plants from Loc 1 and trans-piperitone oxide in plants from Loc 2 (19.8 %) and Loc 3 (33.5 %). This is the first report for wild populations in Greece of a M. spicata oil in which 1,8-cineole is the major constituent. The observed variation in essential oil composition between locations and plant organs in July would not appear to be directly related to the climatic conditions. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699266#.UWqrqUqC5mM [article] Mentha spicata essential oils rich In 1,8-cineole and 1,2-epoxy-p-menthane derivatives from zakynthos (Ionian Island, W Greece) [texte imprimé] / Catherine M. Cook, Auteur ; Stella Kokkini, Auteur ; Thomas Lanaras, Auteur . - 2007 . - pp. 225-230. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°3 (Mai/Juin 2007) . - pp. 225-230 Mots-clés : Mentha  spicata  Lamiaceae  Essential  oil  composition  Trans-piperitone  oxide  Piperitenone  oxide  1,8-cineole Résumé : Wild Mentha spicata plants from 3 locations on the Island of Zakynthos had essential oil yields (mL/100g DW) ranging from 0.5–1.1 %. The main oil constituents were trans-piperitone oxide, piperitenone oxide and 1,8-cineole. On a whole plant basis (aerial parts) the trans-piperitone oxide content ranged from 1.4 % location (Loc 1) to 32.5% (Loc 3) and appeared to have an inverse relationship with the 1,8-cineole content which ranged from 10.8 % (Loc 3) to 37.9 % (Loc 1). 1,8-cineole was the major oil constituent (37.9 %) of M. spicata plants from Loc 1. The major constituent of the inflorescence oils was piperitenone oxide which ranged from 32.4 % (Loc 3) to 46.3 % of the oil (Loc 1). The major constituent of the leaf oils was 1,8-cineole (40.5 %) in plants from Loc 1 and trans-piperitone oxide in plants from Loc 2 (19.8 %) and Loc 3 (33.5 %). This is the first report for wild populations in Greece of a M. spicata oil in which 1,8-cineole is the major constituent. The observed variation in essential oil composition between locations and plant organs in July would not appear to be directly related to the climatic conditions. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699266#.UWqrqUqC5mM