Rheology and Tribology Study of the Sensory Perception of Oral Care Products
| Autor: | Huifang Cai, Jianshe Chen, Yujun Li |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Smoothness (probability theory) media_common.quotation_subject Sensory system 030206 dentistry 04 agricultural and veterinary sciences Tribology 040401 food science Surfaces Coatings and Films Biomaterials 03 medical and health sciences Viscosity 0404 agricultural biotechnology 0302 clinical medicine Rheology Perception Lubrication Granularity Composite material media_common |
| Zdroj: | Biotribology. 10:17-25 |
| ISSN: | 2352-5738 |
| Popis: | The texture sensations is an important contribution to consumers' acceptance and preference of oral care products (e.g. toothpaste). A product's rheological properties and its oral tribological behaviour have strong influences on sensory perception, but the mechanisms underpinning such processes are still largely unknown. In this work, a simple experimental set up was used to measure lubricating properties (friction coefficient) as a function of speed for toothpaste samples and their mixtures with either artificial saliva or water. Particle size distribution and rheological properties were also measured along with the lubrication properties. Sensory smoothness and granularity were assessed by a panel using both fingers and tongue. The lubricating properties show significant differences in the boundary regime giving effective discrimination of sample systems. Results from tribological measurements showed a strong linear correlation with the sensory smoothness obtained from taste panel. Further data analysis showed that both rheological properties (viscosity) and particle size distribution strongly influenced the lubrication behaviour and, therefore, contributes to smoothness perception. Results from this work show that combination of rheological and tribological techniques could be a feasible instrumental approach to assess sensory properties of oral care products. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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