Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Astringency Sensitivity to Tannic Acid: Effect of Ageing and Salivary Flow

Version 1 : Received: 24 March 2021 / Approved: 25 March 2021 / Online: 25 March 2021 (14:36:11 CET)

A peer-reviewed article of this Preprint also exists.

Wang, M.; Septier, C.; Brignot, H.; Martin, C.; Canon, F.; Feron, G. Astringency Sensitivity to Tannic Acid: Effect of Ageing and Saliva. Molecules 2022, 27, 1617. https://doi.org/10.3390/molecules27051617 Wang, M.; Septier, C.; Brignot, H.; Martin, C.; Canon, F.; Feron, G. Astringency Sensitivity to Tannic Acid: Effect of Ageing and Saliva. Molecules 2022, 27, 1617. https://doi.org/10.3390/molecules27051617

Journal reference: Molecules 2022
DOI: 10.3390/molecules27051617

Abstract

Astringency is an important sensory characteristic of food and beverages containing polyphenols. However, astringency perception in elderly people has not been documented. The aim of the present work was to evaluate sensitivity to astringency as a function of age and salivary flow. Fifty-four panellists, including 30 elderly people (age=75±4.2 years) and 24 young people (age=29.4±3.8 years), participated in this study. Astringency sensitivity was evaluated by the 2-alternative forced choice (2-AFC) procedure using tannic acid solutions. Whole saliva was collected for 5 min before and after sensory tests. The results showed that the astringency threshold was significantly higher in the elderly group than in the young group. Moreover, a negative correlation between salivary flow and threshold was observed in the young group only. These results showed a difference in oral astringency perception as a function of age for the first time. This difference can be linked to salivary properties that differ as a function of age.

Keywords

astringency; threshold; saliva; elderly; tannic acid

Subject

LIFE SCIENCES, Biochemistry

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.