Acoustic Tribology Validation Study

NIZO Food Research

Status: Completed

Conditions: Mouth Feel in Relation to Food Preference and Energy Intake

Study type: Observational

Funder types: Other

Identifiers

NCT02244476

NIZO 105356

Details and patient eligibility

About

Dairy-based beverages contain fat and sugars. As both contribute to the energy intake upon consumption, food industry strives to reduce these ingredients while maintaining the taste, texture and aroma properties of the beverages. A successful reduction of fat and sugar from drinks has still proven a great challenge since consumers have less preference for the mouth feel of reformulated beverages than for the regular beverages. Mainly because instrumental measures like rheology and traditional tribology do not entirely predict the experienced mouth feel, there is an interest in alternative correlates for mouth feel aspects related to fat and sugar perception. In a recent study it was demonstrated that vibrations produced during interaction between the tongue, palate and beverages during consumption are very sensitive to the amount of fat and texturizers in the beverage. The present study aims at clarifying that relation for a larger panel of human subjects, by systematically evaluating vibration spectra during consumption of dairy beverages that differ in fat content, sugar content or pH. Secondly, the correlation of vibration spectra (acoustic tribology) with mouth feel-related sensory properties and composition of fat deposits on the tongue will be assessed.

Enrollment: 17 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age 18-65 years
• Healthy set of teeth
• Ability to work with sensory descriptors for dairy products.
• Able to produce an acoustic signal that is larger than the background signal
• Voluntary participation
• Having given written informed consent
• Willing to comply with study procedures
• Willing to accept use of all encoded data, including publication, and the confidential use and storage of all data
• Willing to accept disclosure of the financial benefit of participation in the study to the authorities concerned

Exclusion criteria

• Wearing dentures
• Inability to comply with instructions for acoustic tribology
• A self-reported food allergy or sensitivity for ingredients of the test products