CONSENSUS AND SENSORY DOMINANCE ARE DEPENDENT ON QUALITY CONCEPT DEFINITIONS
Abstract
The definition of the term “quality” in sensory evaluation of food products does not seem to be consensual. Descriptive or liking methods are generally used to differentiate between wines (Lawless et al., 1997). Nevertheless, quality evaluation of a product such as wine can also relate to emotional aspects. As exposed by Costell (2002), product quality is defined as an integrated impression, like acceptability, pleasure, or emotional experiences during tasting. According to the ‘modality appropriateness’ hypothesis which predicts that wine tasters weigh the most suitable sensory inputs for a specific assessment (Freides, 1974; Welch & Warren, 1980), the nature of the quality definitions may modulate sensory influences.
The aim of the present study was to evaluate whether the consensus, the discrimination between wines and the multisensory integration process during wine assessment depend on the types of questions or on the definition of the quality concept. The study was carried out among wine-tasting professionals who are able not only of technically judging the wines, but also of giving an appreciation of their emotional states (arousal and imagination elicited by wine) during the tasting. This served as a benchmark for comparing holistic technical, liking, emotional and aesthetic responses to wines. Expert wine tasters assessed holistic questions on twenty wines repeatedly, under different tasting conditions: global (all senses), unimodal (visual, smell and taste), and combined senses (visual/smell, visual/in-mouth sensations and olfaction/in-mouth sensations). After classical analysis (correlation between these different holistic questions, consensus and discrimination between wines according to the question), regression models suggested a dominance of smell in arousal, image and hedonism decisions, and of visual dominance for technical quality decisions. Visual cues dominated in the more technical quality questions, whereas smell cues prevailed in the emotional (representational) questions. A modulating view of multisensory integration was thus reflected which depends on the quality concept definitions being assessed.
DOI:
Issue: OENO Macrowine 2023
Type: Poster
Authors
1. Univ. Bordeaux, Bordeaux INP, Bordeaux Sciences Agro, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d’Ornon, France
Contact the author*
Keywords
quality, multisensory integration, wine experts, holistic approaches