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Antioxidant capacity of the essential oils from lavandula luisieri, L. stoechas subsp. lusitanica, L. stoechas subsp. lusitanica x L. luisieri and L. viridis grown in algarve (Portugal) / Fabiola Matos in The journal of essential oil research, Vol. 21 N° 4 (Juillet/Août 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 327-336 Titre : Antioxidant capacity of the essential oils from lavandula luisieri, L. stoechas subsp. lusitanica, L. stoechas subsp. lusitanica x L. luisieri and L. viridis grown in algarve (Portugal) Type de document : texte imprimé Auteurs : Fabiola Matos, Auteur ; Maria G. Miguel, Auteur ; Joao Duarte, Auteur Article en page(s) : pp. 327-336 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lavandula  luisieri  Lavandula  stoechas  L.  subsp.  lusitanica  Lavandula  viridis  Lavandula  stoechas  subsp.  lusitanica  x  L.  luisieri  Lamiaceae  Essential  oil  composition  1,8-cineole  Fenchone  Camphor  Trans-α-necrodyl  acetate  Antioxidant  activity Index. décimale : 646 Résumé : The antioxidant capacity of the essential oils isolated from the aerial parts of Lavandula luisieri, L. stoechas subsp. lusitanica, the hybrid L. stoechas subsp. lusitanica x L. luisieri, and L. viridis collected in different regions of Algarve (Portugal), as well as that of butylated hydroxytoluene (BHT), was evaluated using three different methods: free radical scavenging activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, thiobarbituric acid reactive substances assay (TBARS) and reductive potential. The chemical composition of the essential oils was analyzed by GC and GC/MS. The oils of L. luisieri were mainly constituted by 1,8-cineole (26-34%) and trans-α-necrodyl acetate (11–18%), only present in this lavender species. The oils of Lavandula stoechas subsp. lusitanica and the hybrid L. stoechas subsp. lusitanica x L. luisieri were dominated by fenchone (42–44%) and camphor (35–36%). Despite of the morphological resemblances of the L. stoechas subsp. lusitanica x L. luisieri with L. luisieri, no necrodane derivatives were detected in the hybrid, showing instead a major chemical similarity with L. stoechas oil. Lavandula viridis oil mainly comprised 1,8-cineole (33%) and camphor (20%). The oils of L. luisieri were the most effective as antioxidants, independent of the evaluation method used, although showing always lower antioxidant ability than BHT. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Antioxidant capacity of the essential oils from lavandula luisieri, L. stoechas subsp. lusitanica, L. stoechas subsp. lusitanica x L. luisieri and L. viridis grown in algarve (Portugal) [texte imprimé] / Fabiola Matos, Auteur ; Maria G. Miguel, Auteur ; Joao Duarte, Auteur . - pp. 327-336. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 327-336 Mots-clés : Lavandula  luisieri  Lavandula  stoechas  L.  subsp.  lusitanica  Lavandula  viridis  Lavandula  stoechas  subsp.  lusitanica  x  L.  luisieri  Lamiaceae  Essential  oil  composition  1,8-cineole  Fenchone  Camphor  Trans-α-necrodyl  acetate  Antioxidant  activity Index. décimale : 646 Résumé : The antioxidant capacity of the essential oils isolated from the aerial parts of Lavandula luisieri, L. stoechas subsp. lusitanica, the hybrid L. stoechas subsp. lusitanica x L. luisieri, and L. viridis collected in different regions of Algarve (Portugal), as well as that of butylated hydroxytoluene (BHT), was evaluated using three different methods: free radical scavenging activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, thiobarbituric acid reactive substances assay (TBARS) and reductive potential. The chemical composition of the essential oils was analyzed by GC and GC/MS. The oils of L. luisieri were mainly constituted by 1,8-cineole (26-34%) and trans-α-necrodyl acetate (11–18%), only present in this lavender species. The oils of Lavandula stoechas subsp. lusitanica and the hybrid L. stoechas subsp. lusitanica x L. luisieri were dominated by fenchone (42–44%) and camphor (35–36%). Despite of the morphological resemblances of the L. stoechas subsp. lusitanica x L. luisieri with L. luisieri, no necrodane derivatives were detected in the hybrid, showing instead a major chemical similarity with L. stoechas oil. Lavandula viridis oil mainly comprised 1,8-cineole (33%) and camphor (20%). The oils of L. luisieri were the most effective as antioxidants, independent of the evaluation method used, although showing always lower antioxidant ability than BHT. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top