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Characterization of volatile compounds and aroma profiles of malaysian pomelo (citrus grandis (L.) osbeck) blossom and peel / Mun-Wai Cheong in The journal of essential oil research, Vol. 23 N° 2 (Mars/Avril 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 2 (Mars/Avril 2011) . - pp. 34-44 Titre : Characterization of volatile compounds and aroma profiles of malaysian pomelo (citrus grandis (L.) osbeck) blossom and peel Type de document : texte imprimé Auteurs : Mun-Wai Cheong, Auteur ; Xiu-Qing Loke, Auteur ; Shao-Quan Liu, Auteur Année de publication : 2011 Article en page(s) : pp. 34-44 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pomelo  Blossom  Peel  HS-SPME  Sensory  evaluation Index. décimale : 646 Résumé : The knowledge of the chemical compositions and sensory profiles of their peels and blossoms could lead to better understanding of two cultivars of Malaysian pomelo. This work was to determine the volatile compositions of Malaysian pomelo blossoms and peels through HS-SPME-GC/MS analysis and principal component analysis (PCA) approach as well as to identify their key aroma profiles by sensory evaluation. Pink and white pomelo blossoms contained similar volatiles, which mainly consisted of limonene, cis-β-ocimene, α-terpinene, linalool, methyl anthranilate, and indole. Their primary difference was in the concentration ratio between limonene and linalool. Major volatiles in pomelo peels were terpene hydrocarbons. Pink pomelo peel contained higher levels of aldehydes (e.g. octanal, decanal and citral), while some trace-level important compounds (e.g. β-sinensal, α-sinensal and nootkatone) were found only in white pomelo peel. Through sensory evaluation, both intact pomelo blossoms had similar aroma profiles, which comprised the dominant note of floral, followed by animalic and citrus blossom. Additionally, pink pomelo peel extract was much more impactful than white pomelo peel extract, especially in grapefruit and green notes. Through HS-SPME-GC/MS and PCA, the authors managed to discover the similarities and differences between two Malaysian pomelo cultivars. Further, the sensory data on intact pomelo blossoms and pomelo peel extracts provided more insight. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700445 [article] Characterization of volatile compounds and aroma profiles of malaysian pomelo (citrus grandis (L.) osbeck) blossom and peel [texte imprimé] / Mun-Wai Cheong, Auteur ; Xiu-Qing Loke, Auteur ; Shao-Quan Liu, Auteur . - 2011 . - pp. 34-44. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 2 (Mars/Avril 2011) . - pp. 34-44 Mots-clés : Pomelo  Blossom  Peel  HS-SPME  Sensory  evaluation Index. décimale : 646 Résumé : The knowledge of the chemical compositions and sensory profiles of their peels and blossoms could lead to better understanding of two cultivars of Malaysian pomelo. This work was to determine the volatile compositions of Malaysian pomelo blossoms and peels through HS-SPME-GC/MS analysis and principal component analysis (PCA) approach as well as to identify their key aroma profiles by sensory evaluation. Pink and white pomelo blossoms contained similar volatiles, which mainly consisted of limonene, cis-β-ocimene, α-terpinene, linalool, methyl anthranilate, and indole. Their primary difference was in the concentration ratio between limonene and linalool. Major volatiles in pomelo peels were terpene hydrocarbons. Pink pomelo peel contained higher levels of aldehydes (e.g. octanal, decanal and citral), while some trace-level important compounds (e.g. β-sinensal, α-sinensal and nootkatone) were found only in white pomelo peel. Through sensory evaluation, both intact pomelo blossoms had similar aroma profiles, which comprised the dominant note of floral, followed by animalic and citrus blossom. Additionally, pink pomelo peel extract was much more impactful than white pomelo peel extract, especially in grapefruit and green notes. Through HS-SPME-GC/MS and PCA, the authors managed to discover the similarities and differences between two Malaysian pomelo cultivars. Further, the sensory data on intact pomelo blossoms and pomelo peel extracts provided more insight. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700445