| Title: | Olfactory impact of esters on rose essential oil floral alcohol aroma expression in model solution |
| Author(s): | Xiao Z; Luo J; Niu Y; Wang P; Wang R; Sun X; |
| Address: | "School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, People's Republic of China. School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, People's Republic of China.. Electronic address: yunweiniu@163.com" |
| DOI: | 10.1016/j.foodres.2018.08.015 |
| ISSN/ISBN: | 1873-7145 (Electronic) 0963-9969 (Linking) |
| Abstract: | "This study focused on the impact of esters on the perception of floral aroma in rose essential oil. Various aromatic reconstitutions were prepared, consisting of 10 alcohols and 9 esters, all the concentrations found in rose essential oil. Sensory analysis by the triangular tests revealed the interesting behavior of certain compounds among the 9 esters following their addition or omission. The results tend to highlight the important role of ethyl octanoate, ethyl tetradecanoate, citronellyl acetate, geranyl acetate, and 2-phenethyl acetate of esters in rose essential oil. The 'olfactory threshold' (OT) of the 5 esters, the floral reconstitution and the mixtures of ester and floral reconstitution were evaluated in alkanes solution. Through the Feller's additive model analysis, it was found that the presence of ethyl octanoate, ethyl tetradecanoate, and citronellyl acetate led to a significant in decrease the OT of the mixtures, whereas geranyl acetate raised the OT. The floral reconstitution in alkanes solution was supplemented with the 5 esters at high, medium, and low concentration, then analyzed by quantitative descriptive analysis. It was revealed that ethyl octanoate, ethyl tetradecanoate, and citronellyl acetate adding overall aroma, and geranyl acetate masking the overall aroma perception in a model floral mixture. Sensory profiles highlighted changes in the perception of aroma nuances in the presence of the 5 esters, with specific perceptive interactions, and reported on the graph based on two parameters [sigma?ª+=?ª+f(tau)]. This paper provided a reference for the flavourists" |
| Keywords: | "Acetates/analysis Acyclic Monoterpenes/analysis Adolescent Adult Caprylates/analysis Esters/*analysis Female Humans Male Monoterpenes/analysis Odorants/*analysis Oils, Volatile/*analysis Phenylethyl Alcohol/analogs & derivatives/analysis Plant Extracts/an;" |
| Notes: | "MedlineXiao, Zuobing Luo, Jing Niu, Yunwei Wang, Pinpin Wang, Ruolin Sun, Xiaoxin eng Research Support, Non-U.S. Gov't Canada 2019/02/06 Food Res Int. 2019 Feb; 116:211-222. doi: 10.1016/j.foodres.2018.08.015. Epub 2018 Aug 4" |
