Search results for " minerality"
showing 4 items of 4 documents
Structural approach of social representation: Application to the concept of wine minerality in experts and consumers
2015
© 2015 Elsevier Ltd. In recent years the sensory evaluation field has been moving from the traditional sensory descriptive methodologies towards consumer based methodologies. Sensory descriptions are not confined to sensory evaluation. In everyday life, people use also descriptions to communicate about products sensory properties. The theory of social representation offers a new approach for studying the meaning of the terminology used in these everyday life descriptions. One implication of this theory is that meaning is created through a system of social negotiations rather than being a fixed and finite code. The goal of the present study was to understand the meaning of the concept of win…
Clustering of textual networks: analysing open-ended questions in text data of the perception of minerality in wine
2014
International audience; Open-ended questions are commonly used in sensory analyses, and are usually dealt with by correspondence analysis (CA) of the term-respondent matrix. CA is apt in detecting strong associations between terms and groups of respondents, but less so when the questions are interpreted differently among respondents and, thus, seem to open a polysemic space for the answers. Also, CA offers little flexibility in filtering out irrelevant textual structure, or in controlling the relative contribution of rare versus frequent terms in the overall analysis. This contribution presents methodological extensions of CA together with application on a survey of 1900 responses bearing u…
Sensory and chemical drivers of wine minerality aroma: An application to Chablis wines
2017
The goal of this work was to evaluate the effect of vineyard position on the minerality of wines and to establish relationships between minerality scores, sensory descriptors and chemical composition. Sensory analyses included minerality rating and free description performed by wine professionals under two conditions: orthonasal olfaction alone and global tasting. Chemical characterization included analysis of major and minor volatile compounds, volatile sulphur compounds, mercaptans, metals, anions and cations. Results showed a significant effect of the river bank on wine minerality scores only in the orthonasal olfaction condition, samples from the left being more mineral than those from …
Perception of mineral character in Sauvignon blanc wine: inter-individual differences
2014
Revue non indexée dans le JCR.; Of the descriptors employed to characterize wine organoleptically, minerality is arguably one of the most enigmatic. The aim of the work described in this article was to delineate the nature of perceived minerality in Sauvignon wine, specifically its sensorial reality for experienced wine professionals from France and New Zealand. Participants evaluated 16 Sauvignon blanc wines (8 French; 8 New Zealand) under three conditions, ortho-nasal olfaction, palate only (Nose-clip condition), and by full tasting (global perception). Data from the global condition only are reported here. Key results include: i) that although there were quantitative differences in perce…