Search results for "ensory analysis"
showing 10 items of 139 documents
Production of a cheese model for sensory evaluation of flavour compounds
1995
Summary - A cheese model used to perform sensory evaluation of flavour compounds extracted from various cheese varieties was made with caseins, low heat milk powder, deodorized milk fat, NaCI and renne!. Its composition and physicochemical properties were close to mature hard cheese, apart from a lower dry matter content and sodium concentration, and a higher lactose concentration. Its preparation was established in arder to avoid drainage for at least 24 h, which should allow the incorporation of not only sorne lipophilic substances such as aromas but also some water-soluble substances such as amino acids and peptides. The rheological behaviour of the cheese model measured by a compression…
Determination of taste-active compounds of a bitter camembert cheese by omission tests
2001
The taste-active compounds of a Camembert cheese selected for its intense bitterness defect were investigated. The water-soluble fraction (WSE) was extracted with pure water and fractionated by successive tangential ultrafiltrations and nanofiltration. The physicochemical assessment of these fractions led to the construction of a model WSE which was compared by sensory evaluation to the crude water-soluble extract, using a panel of 16 trained tasters. As no significant difference was perceived, this model WSE was then used directly or mixed with other cheese components for omission tests. Among the main taste characteristics of the WSE (salty, sour, umami and bitter), bitterness was found t…
Sensory analysis of Burgundy Pinot noir wines: A comparison of orthonasal and retronasal profiling
1999
Thirty Burgundy Pinot noir wines were evaluated by quantitative descriptive profile by nose (BN) and by mouth (BM) separately, by a trained panel composed of 12 judges. A specific vocabulary of 20 terms was developed. Sensory results were analyzed and compared by univariate and multivariate statistical techniques. Principal component analyses of the mean ratings BN and BM were fairly comparable regarding correlation among variables and the position of the wines. However, five sensory characteristics seem to be more intensely perceived BM, against 6 BN. Panel discrimination of the wines and panel repeatability in the measure were found to be slightly better BN than BM. A further canonical di…
REPRESENTATION S DES VINS ROUGES DE BOURGOGNE CHEZ LES ACTEURS DE LA FILIERE : UN EFFET AMONT vs AVAL ?
2014
International audience; Les différents segments de professionnels de la filière vitivinicole partagent-t-ils les mêmes représentations vis-à-visdes vins rouges de Bourgogne? Tel le est la question à laquelle nous avons souhaité répondre. Afin d’évaluer dans un premier temps le degré de convergence des réponses sensorielles, visuelles et olfacto-gustatives, deux familles d’acteurs de la filière bourguignonne ont été étudiées: celle des professionnels amont(viticulteurs, œnologues,techniciens) et celle des professionnels aval (restaurateurs,sommeliers,cavistes, commerciaux grande distribution). L’approche sensorielle convoquée ici reposait sur la mesure intrinsèque d’exemplarité. [1]Pour ce f…
Sensory methodology developed for the investigation of sciaccarello wine concept
2004
<p style="text-align: justify;">The aim of the present work was to underline the existence of a sensory space relevant to Sciaccarello wines. Twenty-eight wines were selected for viticultural and enological characteristics, using 1/2 Sciaccarello/Non- Sciaccarello ratio. Sensory analyses (orthonasal then overall perceptions) were performed with a panel composed of seventeen judges. All of the judges were experienced in Sciaccarello wines knowledge. Statistical treatment by PCA was first carried out to display the consensus between the assessors. ANOVA was performed to discriminate accurate and inaccurate examples of Sciaccarello wines. This study demonstrated the existence of the sens…
Characterization of key aroma compounds in Burgundy truffle
2021
International audience
Variabilité climatique et profils organoleptiques du Pinot noir dans le monde
2015
Wine typicity is revealed at various spatial scales, according to the variability of terroir components, which individual contribution change depending on the site. In this study, the impact of climate at global scale on the sensory profile of wine is examined.Thirty one Pinot noir wines produced in 16 winegrowing regions in Europe (Germany, France and Switzerland), North America (USA), South America (Chile) and Oceania (Australia and New Zealand) were selected. A blind testing was performed on the wines by 14 judges; among which 9 were considered sufficiently repeatable (criteria evaluated from the sensory analysis results of two identical wines). Wines were described by 26 visual, olfacto…
Association entre l’attirance pour le gras, le sucré et le salé et les fluctuations pondérales sur 4 ans
2016
Introduction et but de l’étude : Des études ont mis en évidence le lien entre l’attirance sensorielle pour le gras, le salé et le sucré et le statut pondéral, souvent évalué par une variation positive ou négative du poids. Les fluctuations pondérales sont également un indicateur pertinent bien que peu étudiées, puisque la multiplication de cycles de perte de poids puis de reprise, communément appelé « yo-yo pondéral » ou « fluctuation pondérales » pourrait avoir d’importantes répercussions sur la santé, tant au niveau physiologique qu’au niveau psychologique. L’objectif de cette étude était d’estimer l’association entre l’attirance pour le gras, le sucré et le salé et l’amplitude des fluctu…
Could pupil dilation measurements be of any help to sensory analysis?
2011
Could pupil dilation measurements be of any help to sensory analysis?. 29. Pupil colloquium
Deux approches sensorielles autour du concept gras/volume dans les vins blancs et les vins rouges
2013
Introduction. Les descripteurs gras et volume sont des mots très présents dans le discours spécialisé des professionnels du vin mais il ne va pas de soi, a priori, que les différents locuteurs se comprennent quand ils utilisent l’un et l’autre de ces deux termes. Le processus cognitif de détermination sensorielle de ces deux descripteurs apparaît complexe car à la fois multimodal et multiparamétrique. La viscosité, la texture ou le caractère tapissant sont, parmi bien d’autres, autant de dimensions potentiellement sous-jacentes à ces deux termes (Folkenberg et al., 1999 ; Szczesniak, 2002). De plus, et comme le soulignaient déjà Guinard et Mazzucchelli en 1996, le processus de détermination…