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Essential oil content and composition of Achillea biebersteinii Afan. in different plant parts and phenological stages / Seyed Fazel Mirahmadi in The journal of essential oil research, Vol. 24 N° 1 (Fevrier 2012) 

Public ISBD [article]  in The journal of essential oil research > Vol. 24 N° 1 (Fevrier 2012) . - pp. 25-29 Titre : Essential oil content and composition of Achillea biebersteinii Afan. in different plant parts and phenological stages Type de document : texte imprimé Auteurs : Seyed Fazel Mirahmadi, Auteur ; Fatemeh Sefidkon, Auteur ; Mohammad Reza Hassandokht, Auteur Année de publication : 2012 Article en page(s) : pp. 25-29 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Achillea  biebersteinii  Afan.  Essential  oil  Phenological  stagesLimonene  4aα-7α-7aα-nepetalactone  4aα-7β-7aα-nepetalactone Résumé : In this study, the essential oil content and composition of Achillea biebersteinii Afan. at different phenological stages including vegetative, floral budding, full flowering (leaves, stems and flowers) and fruit set were studied by means of gas chromatography (GC) and gas chromatography–mass spectometry (GC–MS). All oil samples from different plant parts and phenological stages were mostly made up of monoterpenoid compounds (88.6 – 99.6%), especially oxygenated ones (52.4 – 82.4%). The oil of the vegetative stage contained high amounts of limonene, 4aα-7β-7aα-nepetalactone, p-cymene and 1,8-cineole. The major constituents in the flower budding stage oil were found to be limonene, 1,8-cineole and 4aα-7β-7aα-nepetalactone. In the oil of the fruit set stage, γ-terpinene, p-cymene and cis-chrysanthenyl acetate were the predominant constituents. On the other hand, the most important compounds from the stem oil were 4aα-7α-7aα-nepetalactone, 1,8-cineole, 4aα-7β-7aα-nepetalactone and camphor. 4aα-7α-7aα-nepetalactone, limonene, 1,8-cineole and cis-p-menth-2-en-1-ol were found in high concentration in the oil of leaves, whereas 4aα-7α-7aα-nepetalactone, 4aα-7β-7aα-nepetalactone, limonene and p-cymene were present in large amounts in the oil of flowers. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.645636 [article] Essential oil content and composition of Achillea biebersteinii Afan. in different plant parts and phenological stages [texte imprimé] / Seyed Fazel Mirahmadi, Auteur ; Fatemeh Sefidkon, Auteur ; Mohammad Reza Hassandokht, Auteur . - 2012 . - pp. 25-29. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 1 (Fevrier 2012) . - pp. 25-29 Mots-clés : Achillea  biebersteinii  Afan.  Essential  oil  Phenological  stagesLimonene  4aα-7α-7aα-nepetalactone  4aα-7β-7aα-nepetalactone Résumé : In this study, the essential oil content and composition of Achillea biebersteinii Afan. at different phenological stages including vegetative, floral budding, full flowering (leaves, stems and flowers) and fruit set were studied by means of gas chromatography (GC) and gas chromatography–mass spectometry (GC–MS). All oil samples from different plant parts and phenological stages were mostly made up of monoterpenoid compounds (88.6 – 99.6%), especially oxygenated ones (52.4 – 82.4%). The oil of the vegetative stage contained high amounts of limonene, 4aα-7β-7aα-nepetalactone, p-cymene and 1,8-cineole. The major constituents in the flower budding stage oil were found to be limonene, 1,8-cineole and 4aα-7β-7aα-nepetalactone. In the oil of the fruit set stage, γ-terpinene, p-cymene and cis-chrysanthenyl acetate were the predominant constituents. On the other hand, the most important compounds from the stem oil were 4aα-7α-7aα-nepetalactone, 1,8-cineole, 4aα-7β-7aα-nepetalactone and camphor. 4aα-7α-7aα-nepetalactone, limonene, 1,8-cineole and cis-p-menth-2-en-1-ol were found in high concentration in the oil of leaves, whereas 4aα-7α-7aα-nepetalactone, 4aα-7β-7aα-nepetalactone, limonene and p-cymene were present in large amounts in the oil of flowers. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.645636

Variability of the essential oil content and composition among the wild populations of Achillea biebersteinii Afan. from Iran / Seyed Fazel Mirahmadi in The journal of essential oil research, Vol. 24 N° 6 (Décembre 2012) 

Public ISBD [article]  in The journal of essential oil research > Vol. 24 N° 6 (Décembre 2012) . - pp. 523-531 Titre : Variability of the essential oil content and composition among the wild populations of Achillea biebersteinii Afan. from Iran : occurrence of new nepetalactones chemotypes Type de document : texte imprimé Auteurs : Seyed Fazel Mirahmadi, Auteur ; Mohammad Reza Hassandokht, Auteur ; Fatemeh Sefidkon, Auteur Année de publication : 2014 Article en page(s) : pp. 523-531 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Achillea  biebersteinii  Afan.  Essential  oil  1,8-cineole  p-cymene  Nepetalactones  (E)-chrysanthenyl  acetate  Camphor Résumé : In this study, the chemical composition of essential oils from twenty-three wild populations of Achillea biebersteinii Afan., growing wild in different parts of Iran, were determined by means of gas chromatography (GC) and GC–mass spectrometry (GC–MS) analyses. Based on the dry weight of samples, the oil content of studied populations varied from 0.44% (Nenor) to 1.62% (Golool) with an average value of 0.81%. In total, twenty-five compounds were identified in the essential oil of all samples corresponding about 92.5–99.1% of the chemical composition. All essential oils were characterized by a high amount of monoterpenoid compounds (99.1–99.2%), especially oxygenated ones (48.5–90%), which were almost dominant in all cases and with a trace amount of sesquiterpenes (0–0.3%). 1,8-Cineole (6.5–68.3%) was generally found as the principal component of most essential oils, followed by p-cymene (1.4–38.6%). The noticeable point of present study was the occurrence of nepetalactones chemotypes in plants of the Nepeta species. These compounds were detected in the essential oils of fourteen of twenty-three populations, which were mostly at least one of the three major components (4.3–43.3%) too. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.728094 [article] Variability of the essential oil content and composition among the wild populations of Achillea biebersteinii Afan. from Iran : occurrence of new nepetalactones chemotypes [texte imprimé] / Seyed Fazel Mirahmadi, Auteur ; Mohammad Reza Hassandokht, Auteur ; Fatemeh Sefidkon, Auteur . - 2014 . - pp. 523-531. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 6 (Décembre 2012) . - pp. 523-531 Mots-clés : Achillea  biebersteinii  Afan.  Essential  oil  1,8-cineole  p-cymene  Nepetalactones  (E)-chrysanthenyl  acetate  Camphor Résumé : In this study, the chemical composition of essential oils from twenty-three wild populations of Achillea biebersteinii Afan., growing wild in different parts of Iran, were determined by means of gas chromatography (GC) and GC–mass spectrometry (GC–MS) analyses. Based on the dry weight of samples, the oil content of studied populations varied from 0.44% (Nenor) to 1.62% (Golool) with an average value of 0.81%. In total, twenty-five compounds were identified in the essential oil of all samples corresponding about 92.5–99.1% of the chemical composition. All essential oils were characterized by a high amount of monoterpenoid compounds (99.1–99.2%), especially oxygenated ones (48.5–90%), which were almost dominant in all cases and with a trace amount of sesquiterpenes (0–0.3%). 1,8-Cineole (6.5–68.3%) was generally found as the principal component of most essential oils, followed by p-cymene (1.4–38.6%). The noticeable point of present study was the occurrence of nepetalactones chemotypes in plants of the Nepeta species. These compounds were detected in the essential oils of fourteen of twenty-three populations, which were mostly at least one of the three major components (4.3–43.3%) too. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.728094