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Conditioned Taste Aversion

Conditioned Taste Aversion

Conditioned taste aversion, also known as sauce béarnaise syndrome, is a phenomenon in which an individual develops an aversion to a certain food taste following a negative experience, typically illness. This form of aversion is a type of classical conditioning in which the taste of the food (conditioned stimulus, CS) is associated with the experience of illness (unconditioned stimulus, UCS).
A notable characteristic of conditioned taste aversion is that it often requires only a single exposure...

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Related Experiment Video

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Oral processing of two milk chocolate samples.

Ana Margarida Carvalho-da-Silva¹, Isabella Van Damme, Will Taylor

¹Division of Food Sciences, The University of Nottingham, Loughborough, LE12 5RD, UK.

Food & Function

|December 21, 2012

Summary

This study reveals how milk chocolate

Area of Science:

Food Science and Technology
Tribology
Rheology

Background:

Mouthcoating is a key textural attribute influencing consumer perception of chocolate.
Previous research indicated mouthcoating differences between chocolates of identical composition.
Understanding the physical basis of these sensory differences is crucial for product development.

Purpose of the Study:

To investigate the textural behavior of two milk chocolates during oral processing.
To correlate sensory perception of mouthcoating with microstructural and tribological properties.
To elucidate the relationship between physical material properties and oral texture perception.

Main Methods:

Oral processing simulation and sensory analysis.
Microstructural analysis using laser diffraction particle size analysis.

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Tribological measurements at in-mouth temperature using a rotational rheometer.

Main Results:

The more mouthcoating chocolate exhibited less flocculation and a different particle size distribution.
Higher melt fraction was observed in the more mouthcoating sample.
Distinct tribological behavior, particularly friction coefficients at varying sliding speeds, was observed between samples.

Conclusions:

Novel correlations were found between sensory mouthcoating and physical properties like melting and friction.
Microstructural changes and tribological behavior significantly influence perceived oral texture.
This research provides a basis for linking objective measurements to subjective sensory experiences in food products.