Does a familiarization step influence results from a TCATA task?

COMPORTAMIENTO DEL CONSUMIDOR

CATA

EVALUACION SENSORIAL

BIBLIOGRAFIA NACIONAL QUIMICA

2017

Temporal Check-All-That-Apply (TCATA) is a multi-attribute temporal approach that extends CATA questions. It is based on continuous selection of the sensory attributes that are perceived as applicable for describing a focal sample during consumption. Compared to CATA, TCATA is a relatively intense and demanding task for consumers who have to focus their attention on the evolution of the sensory characteristics of samples during consumption. The present work evaluated a short familiarization step (7–10 min) where participants became acquainted with the list of sensory terms and applied these to a practice sample using a CATA task and also completed a TCATA task using a warm-up sample. All participants, including those who did not take part in the familiarization step, watched a demonstration video that explained how to use the TCATA software and to complete the task. Three consumer studies, each involving ∼100 participants, were conducted using dried apricots, peanuts, and milk chocolate. The TCATA curves when data were collected with and without the familiarization step were not systematically different. However, a small increase in sample discrimination was established and on this basis familiarization should be considered when using TCATA with consumers. A need to explore other familiarization protocols than the one used here exist in order to develop guidelines for implementation.

Food Quality and Preference  v. 55, 2017. -- p. 91-97

Elsevier

2017

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Artículo

DOI: 10.1016/j.foodqual.2016.09.001

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