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Odor properties and volatile compounds analysis of torreya grandis aril extracts / Liying Niu in The journal of essential oil research, Vol. 23 N° 4 (Juillet/Août 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 4 (Juillet/Août 2011) . - pp. 1-6 Titre : Odor properties and volatile compounds analysis of torreya grandis aril extracts Type de document : texte imprimé Auteurs : Liying Niu, Auteur ; Jianfeng Bao, Auteur ; Lei Zhao, Auteur Année de publication : 2011 Article en page(s) : pp. 1-6 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Torreya  grandis  Odor  Volatile  components  ITEX-GC-FID/MS  QDA Index. décimale : 646 Résumé : The odor properties of samples extracted from the aril of the Chinese traditional medical plant Torreya grandis by hydrodistillation (HD), supercritical fluid carbon dioxide extraction (SFE) and solvent extraction (SE) were investigated by a trained panel applying quantitative descriptive analysis (QDA) with a 5-point intensity scale. At the same time, the volatile profiles were studied by in-tube extraction and direct thermal desorption gas chromatography equipped with fame ionization detector and hyphenated to mass spectrometry (ITEX-GC-FID/MS). The SE sample showed most a unpleasant “sweaty, pungent” odor, while the SFE sample exhibited an appreciated “citric, sweet, floral” odor, and the HD sample was distinguished by its “minty” sensory attributes. Moreover, the HD sample was characterized by the highest concentration of oxygenated monoterpenes (7.9%), while the SFE sample had the highest relative content of sequiterpenes (23.6%). On the other hand, the SE sample was distinguished by the high amount of aliphatic acids (0.8%). The significant difference in the odor properties of the three extracts is attributed to the large diversity in their compositions. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700461 [article] Odor properties and volatile compounds analysis of torreya grandis aril extracts [texte imprimé] / Liying Niu, Auteur ; Jianfeng Bao, Auteur ; Lei Zhao, Auteur . - 2011 . - pp. 1-6. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 4 (Juillet/Août 2011) . - pp. 1-6 Mots-clés : Torreya  grandis  Odor  Volatile  components  ITEX-GC-FID/MS  QDA Index. décimale : 646 Résumé : The odor properties of samples extracted from the aril of the Chinese traditional medical plant Torreya grandis by hydrodistillation (HD), supercritical fluid carbon dioxide extraction (SFE) and solvent extraction (SE) were investigated by a trained panel applying quantitative descriptive analysis (QDA) with a 5-point intensity scale. At the same time, the volatile profiles were studied by in-tube extraction and direct thermal desorption gas chromatography equipped with fame ionization detector and hyphenated to mass spectrometry (ITEX-GC-FID/MS). The SE sample showed most a unpleasant “sweaty, pungent” odor, while the SFE sample exhibited an appreciated “citric, sweet, floral” odor, and the HD sample was distinguished by its “minty” sensory attributes. Moreover, the HD sample was characterized by the highest concentration of oxygenated monoterpenes (7.9%), while the SFE sample had the highest relative content of sequiterpenes (23.6%). On the other hand, the SE sample was distinguished by the high amount of aliphatic acids (0.8%). The significant difference in the odor properties of the three extracts is attributed to the large diversity in their compositions. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700461