Perceptual interactions in complex odour mixtures: The blending effect

2011

Perceptual interactions in complex odour mixtures: The blending effect. 13. Weurman flavour research symposium

La matrice minérale de l'eau influence la perception de la flaveur chlore

2010

poster exposé au 5e Congrès Vitagora Goût-Nutrition-Santé les 23-24 mars 2010 à Dijon (FRANCE); Objectif de l’étude : Le traitement par le chlore garantit une qualité bactériologique irréprochable à l’eau de réseau. La flaveur du chlore est un des reproches majeurs à l’encontre de l’eau du robinet. Le goût d’une eau est influencé par : a) la quantité totale de minéraux présents dans celle-ci (Teillet et al., 2007) [1] ; b) La nature et la proportion relative de ces minéraux (Puget, Curé et al., 2009) [2]. L’objectif de cette étude est de déterminer si le goût intrinsèque de l’eau, induit par sa matrice minérale, peut avoir une influence sur la perception de la flaveur chlore.

Perceptual processing strategy and exposure influence the perception of odor mixtures

2008

 ; In flavor perception, both experience with the components of odor/taste mixtures and the cognitive strategy used to examine the interactions between the components influence the overall mixture perception. However, the effect of these factors on odor mixtures perception has never been studied. The present study aimed at evaluating whether 1) previous exposure to the odorants included in a mixture or 2) the synthetic or analytic strategy engaged during odorants mixture evaluation determines odor representation. Blending mixtures, in which subjects perceived a unique quality distinct from those of components, were chosen in order to induce a priori synthetic perception. In the first part, …

Tap water consumers differ from non-consumers in chlorine flavor acceptability but not sensitivity

2010

International audience; Unpleasant taste and especially chlorine flavor is one of the most common reasons advocated for choosing tap water alternatives as drinking water. As a consequence, the putative link between sensitivity to chlorine flavor and tap water consumption is an issue in drinking water habits studies. In the present study, we set out to examine such a link following a strategy in which we measured chlorine flavor perception at threshold and supra-threshold level for two groups of participants selected on their drinking water consumption habits. The first group included exclusive tap water consumers and the second group included exclusive bottled water consumers. In a first ex…

Just noticeable differences in component concentrations modify the odor quality of a blending mixture.

2008

International audience; The odors we perceive are mainly the result of mixtures of odorants that, however, are commonly perceived as single undivided entities; nevertheless, the processes involved remain poorly explored. It has been recently reported that perceptual blending based on configural olfactory processing can cause odorant mixtures to give rise to an emergent odor not present in the components. The present study examined whether specific component proportions are required to elicit an emergent odor. Starting from the composition of a ternary target mixture in which an emergent pineapple odor was perceived, 4 concentration levels of each component were chosen to elicit just noticea…

Enhancing salty taste through odour–taste–taste interactions: Influence of odour intensity and salty tastants’ nature

2013

WOS:000315557500017 ; www.elsevier.com/locate/foodqual; International audience; Decreasing the sodium content in food products without changing consumer acceptability has become an important challenge for the food industry, and several strategies are currently under investigation to reach this goal. This study investigated the effectiveness of saltiness enhancement by an odour to maintain the perception of saltiness in reduced salt content solutions. In the first experiment, we tested the hypothesis that odour intensity drives the level of saltiness enhancement. The results showed that odour can increase the salty intensity by 25%, while no clear influence of odour intensity either in taste…

Perceptual Interactions in Complex Odor Mixtures

2014

The perception of everyday odors relies on elemental or configural processing of complex mixtures of odorants. Theoretically, the configural processing of a mixture could lead to the perception of a single specific odor for the mixture; however, such a type of perception has hardly been proven in human studies. Here, we report the results of a sorting task demonstrating that a six-component mixture carries an odor clearly distinct from the odors of its components. These results suggest a blending effect of individual components’ odors in mixtures containing more than three odorants.

Cross-modal interactions between taste and smell: Odour-induced saltiness enhancement depends on salt level

2011

International audience; In recent years, health concerns related to salt have led to extensive research on low-salt foods. One major remaining issue is to reduce sodium content while still providing the salty fix, to maintain food appreciation, acceptance and choice. Using well-selected odours has been proposed to compensate for sodium chloride reduction in food, due to the cross-modal interactions between odour and taste. However, interactions between taste and odour, with regards to saltiness, remain poorly investigated. Moreover, although a few studies have assessed the influences of odour and sweet supra-threshold intensity on cross-modal interactions, none focused directly on how they …

Synergy and masking in odor mixtures: an electrophysiological study of orthonasal vs. retronasal perception

2008

Perceptual interactions in a model of wine woody–fruity binary mixtures were previously reported in a psychophysical study performed through orthonasal stimulation only. However, recent studies suggested that the perception of food-like and nonfood-like odors may depend on the route of stimulation. The aim of the present study was two-fold: first to examine the neural correlates of perceptual interactions using electroencephalogram (EEG)-derived event-related potentials (ERPs) and second to test the influence of the stimulation route on quality perception. Therefore, we designed an experiment with 30 subjects to study perceptual interactions in woody–fruity mixtures and compared ortho- vs. …

Chapter 5 - Perceptual interactions in complex odor mixtures: the blending effect

2011

Dissimilarity of blending mixture in an olfactory space

2010

Dissimilarity of blending mixture in an olfactory space. Human chemosensation meeting

Is the superior temporal sulcus involved in the reinforced configural processing of a binary odor mixture?

2013

Is the superior temporal sulcus involved in the reinforced configural processing of a binary odor mixture?. 35. annual meeting - association for chemoreception sciences (AChemS)

Is the superior temporal sulcus involved in the reinforced configural processing of a binary odor mixture?

2013

Is the superior temporal sulcus involved in the reinforced configural processing of a binary odor mixture?. 35. annual meeting - association for chemoreception sciences (AChemS)

Olfactoscan device used to reveal aroma active compounds in pinot noir wines

2015

Olfactoscan device used to reveal aroma active compounds in pinot noir wines. 16. International Symposium on Olfaction and Electronic Noses (ISOEN 2015)