Search results for "TASTE"

Perceived minerality in Sauvignon wines: influence of culture and perception mode

2015

Abstract Description of wine in terms of perceived mineral character has become common practice in recent decades. The major aim of our study was to investigate cultural differences in perception of minerality in wines from France and New Zealand, these countries having very different wine-production histories. A second aim was to investigate influence of perception mode on perceived mineral character in wine to gain increased understanding of the metaphorical descriptor “mineral” as applied to wine chemosensory attributes. Thirty-two French and 31 New Zealand wine professionals evaluated 16 wines (8 French; 8 New Zealand) under three conditions: orthonasal olfaction; global (orthonasal and…

Analytical comparison and sensory representativity of SAFE, SPME, and Purge and Trap extracts of volatile compounds from pea flour

2012

Pisum sativum is of great economic and nutritional interest due to its protein content. Nevertheless, pea products are underused as a protein source in human food because of their strong beany flavour. Therefore, the objective of this study was to select an efficient and representative method to extract volatile molecules of pea flour. In the first step, three extraction methods were chosen: solid phase micro extraction (SPME); Purge and Trap extraction and solvent assisted flavour evaporation (SAFE). The corresponding extracts were analysed by gas chromatography coupled with mass spectrometry. In the second step, the sensory representativity of the extracts was assessed either by direct ga…

Fatty-acid preference changes during development in Drosophila melanogaster.

2011

WOS:000296521400044; International audience; Fatty-acids (FAs) are required in the diet of many animals throughout their life. However, the mechanisms involved in the perception of and preferences for dietary saturated and unsaturated FAs (SFAs and UFAs, respectively) remain poorly explored, especially in insects. Using the model species Drosophila melanogaster, we measured the responses of wild-type larvae and adults to pure SFAs (14, 16, and 18 carbons) and UFAs (C18 with 1, 2, or 3 double-bonds). Individual and group behavioral tests revealed different preferences in larvae and adults. Larvae preferred UFAs whereas SFAs tended to induce both a strong aversion and a persistent aggregation…

Phenotype genotype relationship in human taste

2008

International audience

Sweet influences on early food preference development

2020

Virtual meeting.; International audience

The relationship between sweetness exposure and sweetness liking in infants 3-12 months of age

2022

Infants are increasingly exposed to sweet-tasting foods in their first year of life but it is still unclear whether repeated exposure to those is related to sweetness liking during this period. The study aimed to use the OPALINE cohort to examine the influence of sweetness exposure on liking during two important changes in early infant feeding: at the start of complementary feeding (3-6 months) and the transition to the family table (10-12 months). Infants' sweetness exposure was assessed using monthly 7-day food records completed by mothers (n=312), indicating the number and timing of each feeding of breast/formula milk or complementary foods. Infants' sweetness liking was studied in the l…

Is oral microbiota linked to taste perception in human?

2022

Is oral microbiota implicated in taste? A shotgun metagenomics approach

2023

Brain mechanisms of the odor-induced taste enhancement in people living with normalweight and obesity: sensory and electroencephalography studies

2022

Some odors have the property of enhancing the taste perception, whether it is sweet, salty, acidic or umami. It is therefore possible to enhance the perception of a taste by using odorant ingredients in food. The integration of taste and odor results in the perception of a unique quality for the food, called the flavor. The mechanism that results from this integration, called odor-induced taste enhancement (OITE), has been little studied in the literature in normal weight (NW) and obese (OB) individuals. It has been observed that the odor-induced taste enhancement is higher in OB compared to NP, for a single product tested. The brain structures involved in OITE have already been identified,…

Étude biochimique des récepteurs aux goûts sucré et umami : Rôle des domaines N-terminaux et caractérisation d'un inhibiteur spécifique, la gurmarine

2011

The sweet taste receptor is a heterodimer composed of two subunits called T1R2 and T1R3 whereas the T1R1 and the T1R3 subunits form a heterodimeric receptor for umami taste (the savory taste of monosodium glutamate). Each subunit belongs to the class C of G protein-coupled receptors (GPCRs) and is constituted by a large extracellular Nterminal domain (NTD) linked to the transmembrane domain by a cysteine-rich region. The NTD is composed of two lobes separated by a cleft in which ligands bind. T1R1- and T1R2-NTDs are able to bind sweeteners and umami compounds respectively and undergo ligand-dependent conformational changes (Zhang et al., 2008 ; Nie et al., 2005). However, the relative contr…