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Journal articles

Development of a sensory tool to assess overall liking for the fatty, salty and sweet sensations

Christine Urbano 1 Amélie Deglaire 1, 2 Elodie Cartier-Lange 1 Virginie Herbreteau 3 Sylvie Cordelle 1 Pascal Schlich 1, *
* Corresponding author
2 CRESS - U1153 - Equipe 3: EREN- Equipe de Recherche en Epidémiologie Nutritionnelle
UP13 - Université Paris 13, INRA - Institut National de la Recherche Agronomique : UMR1125, CNAM - Conservatoire National des Arts et Métiers [CNAM], CRESS (U1153 / UMR_A_1125 / UMR_S_1153) - Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité
Abstract : Understanding the origin of the overconsumption of too high levels of sucrose, sodium chloride and lipids in foods raises the question of the influence of the hedonics for these sensations. To better understand this relationship, a sensory tool that enables measurement of liking towards sweet, salty or fatty sensations is required. This liking towards a sensation has to be understood as an overall attractiveness of the sensation. Instruments already existing were unsatisfactory as including a limited number of foods not representative of the overall sensation. A set of hedonic tests, named PrefSens, was developed to measure an overall liking for fatty, salty or sweet sensations. Each test consisted in the rating on a 9-point hedonic scale of a food product at 5 different levels of lipids, sodium chloride or sucrose. To build the PrefSens test, a total of 144 food ranges were tested during the development step (n = 341 subjects) including various food categories, matrices and serving temperatures. Then, based on the technical feasibility and ability to discriminate, 32 food ranges were selected (10 for fatty, 10 for salty and 12 for sweet). The perceived intensity of fatty, salty or sweet ‘‘sensations” of these selected foods was evaluated by a trained panel (n = 12) using Spectrum scales. During the application study, the hedonic evaluation of the selected foods was assessed in 6 tasting sessions by 567 subjects over 8 laboratories spread out in France. For each subject and each product, hedonic ratings (y) were fitted versus the level of fatty, sweet or salty (x) in a quadratic regression, from which the predicted optimal level (Lpref) was derived based on the x-coordinate of the parabola’s maximum weighted by the correlation coefficient between observed and predicted data. The overall liking score for fatty, salty or sweet sensations was the average Lpref over the compounding food ranges. The sensory profile showed that within each sensation the mean perceived intensity significantly increased in a linear manner with the nutrient level. An exception was for the two lowest levels of lipids which were not significantly perceived differently. Concomitantly, the overall liking scores followed an inverted U-shape centered on the middle level of lipids, sodium chloride or sucrose. The distribution was close to normality. Internal validity and consistency of the items compounding the sensations of fatty, salty or sweet were demonstrated. PrefSens is an internally valid and original tool that can be applied to a population sample in order to better understand the determinants of dietary behaviors.
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Submitted on : Saturday, October 3, 2015 - 12:01:05 AM
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Christine Urbano, Amélie Deglaire, Elodie Cartier-Lange, Virginie Herbreteau, Sylvie Cordelle, et al.. Development of a sensory tool to assess overall liking for the fatty, salty and sweet sensations. Food Quality and Preference, Elsevier, 2016, 48 (Part A), pp.23-32. ⟨10.1016/j.foodqual.2015.08.003⟩. ⟨hal-01211083⟩



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