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Changes in essential oil composition of tunisian myrtus communis var. italica L. during Its vegetable cycle / Wissem A. Wannes in The journal of essential oil research, Vol. 22 N° 1 (Janvier/Fevrier 2010) 

Public ISBD [article]  in The journal of essential oil research > Vol. 22 N° 1 (Janvier/Fevrier 2010) . - pp. 13-18 Titre : Changes in essential oil composition of tunisian myrtus communis var. italica L. during Its vegetable cycle Type de document : texte imprimé Auteurs : Wissem A. Wannes, Auteur ; Baya Mhamdi, Auteur ; Jazia Sriti, Auteur Article en page(s) : pp. 13-18 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Myrtus  communis  var.  italica  Myrtaceae  Essential  oil  composition  α-pinene  1,8-cineole  Linalool  Limonene  Geranyl  acetate  Seasonal  variation Index. décimale : 646 Résumé : Myrtus communis var. italica leaves, fruits and stems were gathered from North Tunisia in order to investigate their essential oils during a one-year vegetative cycle by GC-FID and GC/MS. The yield and composition of myrtle oils were found to depend on the organ type and on the harvest period. The oil yield varied from 0.14–0.61% for the leaves, 0.003–0.11% for the fruits, and 0.001–0.06% for the stems. Forty-eight compounds were identified in leaf oils; α-pinene (28.3–58.0%), 1,8-cineole (12.7–30.7%), linalool (2.4–21.5%) and limonene (0.1–13.3%) were the main components. In the fruit oils, 46 compounds were identified with 1,8-cineole (7.3–44.9%), geranyl acetate (1.8–20.5%), linalool (0.7–18.9%) and α-pinene (1.2–12.6%) being the main compounds. Only 40 components were identified in stem oils, which were rich in 1,8-cineole (21.0–52.4%), linalool (3.1–18.4%) and α-pinene (1.5–16.1%). DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/47#top [article] Changes in essential oil composition of tunisian myrtus communis var. italica L. during Its vegetable cycle [texte imprimé] / Wissem A. Wannes, Auteur ; Baya Mhamdi, Auteur ; Jazia Sriti, Auteur . - pp. 13-18. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 1 (Janvier/Fevrier 2010) . - pp. 13-18 Mots-clés : Myrtus  communis  var.  italica  Myrtaceae  Essential  oil  composition  α-pinene  1,8-cineole  Linalool  Limonene  Geranyl  acetate  Seasonal  variation Index. décimale : 646 Résumé : Myrtus communis var. italica leaves, fruits and stems were gathered from North Tunisia in order to investigate their essential oils during a one-year vegetative cycle by GC-FID and GC/MS. The yield and composition of myrtle oils were found to depend on the organ type and on the harvest period. The oil yield varied from 0.14–0.61% for the leaves, 0.003–0.11% for the fruits, and 0.001–0.06% for the stems. Forty-eight compounds were identified in leaf oils; α-pinene (28.3–58.0%), 1,8-cineole (12.7–30.7%), linalool (2.4–21.5%) and limonene (0.1–13.3%) were the main components. In the fruit oils, 46 compounds were identified with 1,8-cineole (7.3–44.9%), geranyl acetate (1.8–20.5%), linalool (0.7–18.9%) and α-pinene (1.2–12.6%) being the main compounds. Only 40 components were identified in stem oils, which were rich in 1,8-cineole (21.0–52.4%), linalool (3.1–18.4%) and α-pinene (1.5–16.1%). DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/47#top

Volatiles from leaves and flowers of borage (Borago officinalis L.) / Baya Mhamdi in The journal of essential oil research, Vol. 21 N° 6 (Novembre/Décembre 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N° 6 (Novembre/Décembre 2009) . - pp. 504-506 Titre : Volatiles from leaves and flowers of borage (Borago officinalis L.) Type de document : texte imprimé Auteurs : Baya Mhamdi, Auteur ; Wissem A. Wannes, Auteur ; Wissai Dhiffi, Auteur Article en page(s) : pp. 504-506 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Borago  officinalis  Boraginaceae  Essential  oil  composition  (E,E)-2,4-decadienal  (Z)-3-hexenol Index. décimale : 646 Résumé : The essential oils obtained from the fresh leaves and flowers of Borago officinalis collected in the region of Amdoun (northwestern Tunisia) were examined by GC and GC/MS. Twenty-three volatile compounds were identified. The oil yields expressed on a dry weight basis were 0.14% and 0.24% for the leaves and flowers, respectively. The main compound determined in flower and leaf oil was (E,E)-2,4-decadienal with 43.4% and 26.9% in the leaf and flower oils, respectively. The oils from the two organs showed the predominance of the aldehyde class which constituted 61.2% and 61.9% in the leaf and flower oils, respectively. Other classes present in important percentages in the two organs were alcohols (22.4%) in the leaf oil and phenols (13.2%) and monoterpene hydrocarbons (12.2%) in the flower oil. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Volatiles from leaves and flowers of borage (Borago officinalis L.) [texte imprimé] / Baya Mhamdi, Auteur ; Wissem A. Wannes, Auteur ; Wissai Dhiffi, Auteur . - pp. 504-506. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N° 6 (Novembre/Décembre 2009) . - pp. 504-506 Mots-clés : Borago  officinalis  Boraginaceae  Essential  oil  composition  (E,E)-2,4-decadienal  (Z)-3-hexenol Index. décimale : 646 Résumé : The essential oils obtained from the fresh leaves and flowers of Borago officinalis collected in the region of Amdoun (northwestern Tunisia) were examined by GC and GC/MS. Twenty-three volatile compounds were identified. The oil yields expressed on a dry weight basis were 0.14% and 0.24% for the leaves and flowers, respectively. The main compound determined in flower and leaf oil was (E,E)-2,4-decadienal with 43.4% and 26.9% in the leaf and flower oils, respectively. The oils from the two organs showed the predominance of the aldehyde class which constituted 61.2% and 61.9% in the leaf and flower oils, respectively. Other classes present in important percentages in the two organs were alcohols (22.4%) in the leaf oil and phenols (13.2%) and monoterpene hydrocarbons (12.2%) in the flower oil. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top