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Chemical composition and antioxidant activities of the essential oils of different parts of cupressus arizonica greene / Seyyed Ahmad Emami in The journal of essential oil research, Vol. 22 N° 3 (Mai/Juin 2010) 

Public ISBD [article]  in The journal of essential oil research > Vol. 22 N° 3 (Mai/Juin 2010) . - pp. 193 - 199 Titre : Chemical composition and antioxidant activities of the essential oils of different parts of cupressus arizonica greene Type de document : texte imprimé Auteurs : Seyyed Ahmad Emami, Auteur ; M. Fakhrjafary, Auteur ; M. Tafaghodi, Auteur Année de publication : 2010 Article en page(s) : pp. 193 - 199 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Cupressus  arizonica  Cupressaceaes  Essential  oil  composition  α-pinene  Myrcene  p-cymene  Antioxidant  activity Index. décimale : 646 Résumé : The essential oils of different parts of Cupressus arizonica were examined for their potential radical scaveng- ing activity. Fresh leaves and fruits of C. arizonica were steam distilled and the oils were analyzed qualitatively and quantitatively by GC and GC/MS. Different methods of rapid TLC screening, DPPH assay, desoxyribose assay, assay for site-specific reaction and non-enzymatic lipid peroxidation were employed to evaluate possible antioxidant activity of the oils and their main components, as well as the positive controls. The main components of these essential oils were a-pinene, cymene, myrcene, limonene, sabinene hydrate, cedrane and germacrene D. In rapid TLC screening, the tested compounds mainly showed antioxidant activity. In DPPH assay the stronger antioxidant effects were shown by the fruit oil of C. arizonia. In deoxyribose degradation assay test, most of the tested compounds showed some antioxidant effects. In non-enzymatic lipid peroxidation test, most antioxidant activity was shown by the fruit oil. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/51 [article] Chemical composition and antioxidant activities of the essential oils of different parts of cupressus arizonica greene [texte imprimé] / Seyyed Ahmad Emami, Auteur ; M. Fakhrjafary, Auteur ; M. Tafaghodi, Auteur . - 2010 . - pp. 193 - 199. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 3 (Mai/Juin 2010) . - pp. 193 - 199 Mots-clés : Cupressus  arizonica  Cupressaceaes  Essential  oil  composition  α-pinene  Myrcene  p-cymene  Antioxidant  activity Index. décimale : 646 Résumé : The essential oils of different parts of Cupressus arizonica were examined for their potential radical scaveng- ing activity. Fresh leaves and fruits of C. arizonica were steam distilled and the oils were analyzed qualitatively and quantitatively by GC and GC/MS. Different methods of rapid TLC screening, DPPH assay, desoxyribose assay, assay for site-specific reaction and non-enzymatic lipid peroxidation were employed to evaluate possible antioxidant activity of the oils and their main components, as well as the positive controls. The main components of these essential oils were a-pinene, cymene, myrcene, limonene, sabinene hydrate, cedrane and germacrene D. In rapid TLC screening, the tested compounds mainly showed antioxidant activity. In DPPH assay the stronger antioxidant effects were shown by the fruit oil of C. arizonia. In deoxyribose degradation assay test, most of the tested compounds showed some antioxidant effects. In non-enzymatic lipid peroxidation test, most antioxidant activity was shown by the fruit oil. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/51