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Volatile constituents of the peel oils of several sweet oranges in China / Masayoshi Sawamura in The journal of essential oil research, Vol. 17 N° 1 (Janvier-Fevrier 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 1 (Janvier-Fevrier 2005) . - pp. 2-6 Titre : Volatile constituents of the peel oils of several sweet oranges in China Type de document : texte imprimé Auteurs : Masayoshi Sawamura, Auteur ; Nguyen Thi Minh Tu, Auteur ; Xiaolin Yu, Auteur Année de publication : 2006 Article en page(s) : pp. 2-6 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Citrus  sinensis  Rutaceae  sweet  orange  oil  Essential  oil  composition  Limonene  Orange  cultivars Résumé : The peel oil compositions of four kinds of sweet oranges in China, Citrus sinensis Osbeck var. Hongjian, C. sinensis Osbeck var. Anliu, C. sinensis Osbeck var. Sihui and C. sinensis Osbeck var. Washington navel, were investigated by GC and GC/MS. The essential oils were extracted by cold-pressing method. Forty-two to 53 compounds were quantitatively determined for each variety. Their percentages, respectively, were: > 97.3%, > 98.4%, > 97.5% and > 98.0% in hydrocarbons; > 1.5%, > 0.7%, > 0.8% and > 0.9% in total aldehydes; 0.8%, 0.5%, 0.5% and 0.5% in alcohols. Either cis-or trans-limonene oxide was detected in small amounts in each of the four samples, with Hongjiang containing both limonene oxides. δ-3-Carene was commonly quantified at a level of 0.1% in all the samples. The content of aliphatic aldehydes, including octanal, nonanal, decanal and dodecanal, exceeded that of terpene aldehydes, such as neral and geranial in Hongjiang (0.9%) and Washington navel (0.6%), whereas the aliphatic aldehydes in Anliu and Sihui were present to a lesser degree than the terpene aldehydes. Either α- or β-sinensal was detected in trace amounts in each of the four samples. Linalool was the major alcohol in all the samples. Nootkatone was not detected. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698813 [article] Volatile constituents of the peel oils of several sweet oranges in China [texte imprimé] / Masayoshi Sawamura, Auteur ; Nguyen Thi Minh Tu, Auteur ; Xiaolin Yu, Auteur . - 2006 . - pp. 2-6. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 1 (Janvier-Fevrier 2005) . - pp. 2-6 Mots-clés : Citrus  sinensis  Rutaceae  sweet  orange  oil  Essential  oil  composition  Limonene  Orange  cultivars Résumé : The peel oil compositions of four kinds of sweet oranges in China, Citrus sinensis Osbeck var. Hongjian, C. sinensis Osbeck var. Anliu, C. sinensis Osbeck var. Sihui and C. sinensis Osbeck var. Washington navel, were investigated by GC and GC/MS. The essential oils were extracted by cold-pressing method. Forty-two to 53 compounds were quantitatively determined for each variety. Their percentages, respectively, were: > 97.3%, > 98.4%, > 97.5% and > 98.0% in hydrocarbons; > 1.5%, > 0.7%, > 0.8% and > 0.9% in total aldehydes; 0.8%, 0.5%, 0.5% and 0.5% in alcohols. Either cis-or trans-limonene oxide was detected in small amounts in each of the four samples, with Hongjiang containing both limonene oxides. δ-3-Carene was commonly quantified at a level of 0.1% in all the samples. The content of aliphatic aldehydes, including octanal, nonanal, decanal and dodecanal, exceeded that of terpene aldehydes, such as neral and geranial in Hongjiang (0.9%) and Washington navel (0.6%), whereas the aliphatic aldehydes in Anliu and Sihui were present to a lesser degree than the terpene aldehydes. Either α- or β-sinensal was detected in trace amounts in each of the four samples. Linalool was the major alcohol in all the samples. Nootkatone was not detected. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698813