Search results for "Sensoriel"

Haro sur l'apéro, ou quels sont les pièges pour manger trop ?

2010

G-protein-coupled odorant receptors underlie mechanosensitivity in olfactory sensory neurons

2012

G-protein-coupled odorant receptors underlie mechanosensitivity in olfactory sensory neurons. 34. annual meeting - Association for chemoreception sciences (AChemS)

Déterminer le goût de l’eau ne coule pas de source

2008

Describing the taste of water is a challenge since drinking water is supposed to have almost no taste. In this study, different classical sensory methodologies have been applied in order to assess sensory features of water. Nevertheless, these methodologies present drawbacks so a new methodology based on the comparison between water samples named “Polarized Sensory Positioning” (PSP) has been developed enabling to easily define the sensory characteristics of water without presenting too many samples. Finally, this new method provides new sensory data and could be extended to other products.

Candidature pour l'obtention de l'habilitation à diriger des recherches présentée et soutenue par Laurent BRONDEL le 5 décembre 2011

2011

Pas de résumé.

Chlorine flavor perception and neutralization in drinking water

2010

For water suppliers, using chlorine is necessary to ensure water bacteriological quality from the treatment plant to the consumers’ tap. However, chlorine flavour is one of the most common reasons advocated for choosing tap water alternatives as drinking water. As a consequence, the putative link between chlorine flavour perception and tap water consumption is an issue in drinking water habits studies. Since the sensory mechanisms involved in chlorine flavour perception remained largely unknown, the main objective of this thesis work was to first highlight those mechanisms and then to identify potential lever chlorine flavour sensory neutralisation.In a first step, we demonstrated that hypo…

Mouse olfactory sensory neurons' plasticity induced by postnatal odorant exposure: anatomical, molecular and physiological consequences

2012

Mouse olfactory sensory neurons' plasticity induced by postnatal odorant exposure: anatomical, molecular and physiological consequences. 8. FENS forum of neuroscience

Moringa oleifera supplemented foods in South Africa : A multidisciplinary approach combining consumer studies with physico-chemical and nutritional a…

2021

Malnutrition is a major challenge in South Africa (SA), particularly in Eastern Cape and Limpopo provinces, which are predominantly black and historically disadvantaged. This thesis aims to assess the potential of Moringa oleifera (MO) as a source of nutritional improvement in the diets of mothers and their children in these provinces. Known for its nutritional benefits, MO is a plant native to India, now cultivated in SA but not widely used for human nutrition. A two-part approach was followed in this thesis. The first part aims to understand how MO is perceived by consumers and how it can be integrated into the South African food repertory. A study of the knowledge, beliefs and consumptio…

Hedonic sensations implicated in the control of human food intake : alimentary alliesthesia and sensory-specific satiety

2011

The control of food intake is a complex and multifactorial process controlled by the CNS. It is implicated in the regulation of body weight and the supply of energy substrates, as well as the supply of a panoply of nutrients to cover the specific needs of the organism. Among all the factors involved, hedonic sensations play an important role in guiding food selection and limitation of intake. The theoretical section of this thesis takes into account the physio-anatomical aspects of the control of food intake, in particular sensory pleasure and its evaluation, within the framework of the three principal hedonic phenomena: Conditioned Satiety (CS), Alimentary alliesthesia (AA) and sensory-spe…

Le nombre de sujets dans les panels d'analyse sensorielle : une approche base de données

2012

The costs associated with sensory evaluation increase with the number of panelists to be enrolled. Classical power computation can be used to derive the minimal number of subjects of a sensory panel in order to control both type I (α risk) and type II (β risk) errors. However, this power computation requires estimates of the size of the product effect to be sought and of the residual variability of the ANOVA model used. Generally, both product effect size and residual variability are difficult to estimate a priori by the sensory analyst. This work offers estimations of these two parameters thanks to the analysis of hundreds descriptive andhedonic studies collected respectively in two databa…

Is the improvement of the nutritional quality compatible with the maintenance of the sensory quality? : the example of biscuits

2013

French biscuit producers are willing to improve the nutritional composition of their products. The. objective of this work was to determine whether it was possible while maintaining the sensory. quality of the reduced product. The first study dealt with the impact of fat and sugar reduction on liking and sensory perception of. 9 types of biscuits and cakes. Results show that children perceived almost no difference and liked. equally the standard and the fat- and/or sugar-reduced variants for most types of biscuits. For. products reduced without adding polyols, adults less like fat- or sugar-reduced variants than. standard ones mainly when they were perceived as less sweet, and to a lesser e…