Xiaoxue Hu
The role of capsaicin stimulation on the physicochemical properties of saliva and aroma release in model aqueous and oil systems
Hu, Xiaoxue; Ayed, Charfedinne; Chen, Jianshe; Fisk, Ian; Yang, Ni
Authors
Charfedinne Ayed
Jianshe Chen
Professor IAN FISK IAN.FISK@NOTTINGHAM.AC.UK
Professor of Flavour Science
Dr NI YANG NI.YANG@NOTTINGHAM.AC.UK
Associate Professor
Abstract
Capsaicin increases saliva production, but the impact of this additional saliva on the food matrix is unknown. This study aimed to explain the impact of capsaicin on saliva properties and in-vivo release of 14 aroma compounds in aqueous [aqu] and oil systems [oil]. To investigate the physicochemical effect from diverse properties of aroma compounds, one healthy subject participated in all the sessions to minimise large variations between individuals. Capsaicin enhanced saliva flow rate (by 172% [aqu] and 85% [oil]) and salivary protein concentration (by 142% [aqu] and 149% [oil]). Furthermore, capsaicin-in-oil stimulated saliva formed a more stable emulsion in the mouth (17% higher zeta-potential and 15% smaller particle size). In-nose release concentrations measured by APCI-MS for certain esters were reduced by capsaicin (e.g., isoamyl acetate was reduced by 65% [aqu] and 76% [oil]), which suggests that capsaicin may induce stronger oral interactions between specific aroma compounds and salivary proteins.
Citation
Hu, X., Ayed, C., Chen, J., Fisk, I., & Yang, N. (2022). The role of capsaicin stimulation on the physicochemical properties of saliva and aroma release in model aqueous and oil systems. Food Chemistry, 386(132824), https://doi.org/10.1016/j.foodchem.2022.132824
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 24, 2022 |
Online Publication Date | Mar 26, 2022 |
Publication Date | Aug 30, 2022 |
Deposit Date | Apr 13, 2022 |
Publicly Available Date | Apr 13, 2022 |
Journal | Food Chemistry |
Print ISSN | 0308-8146 |
Electronic ISSN | 1873-7072 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 386 |
Issue | 132824 |
DOI | https://doi.org/10.1016/j.foodchem.2022.132824 |
Keywords | General Medicine; Food Science; Analytical Chemistry |
Public URL | https://nottingham-repository.worktribe.com/output/7759251 |
Publisher URL | https://www.sciencedirect.com/science/article/pii/S0308814622007865?via%3Dihub |
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The role of capsaicin stimulation on the physicochemical properties of saliva and aroma release in model aqueous and oil systems
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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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