0000000000744178
AUTHOR
María-pilar Sáenz-navajas
Sensory attributes of Rioja red wines and their relationship with quality perception of consumers
Póster presentado en la Third Edition of International Conference Series on Wine Active Compounds (WAC2014), celebrada en Borgoña (Francia) del 26 al 28 de marzo de 2014.
Sensory drivers of intrinsic quality of red wines
Abstract The present study aims at evaluating the effect of culture and level of expertise on the perception of wine intrinsic quality. Therefore, regular consumers (108) and experts (119) from La Rioja (RJ-Spain) and Cotes du Rhone (CdR-France) evaluated the intrinsic quality of 12 red wines from both regions. Participants had to categorise the wines according to four levels of quality going from very low to very high quality. Results show no significant correlation between the quality scores given by experts and regular consumers whereas judgments given by French and Spanish experts are significantly correlated as are consumers' quality judgments. This demonstrates that perceived intrinsi…
Study of the effect of H2S, MeSH and DMS on the sensory profile of wine model solutions by Rate-All-That-Apply (RATA)
The effect of hydrogen sulfide (HS), methanethiol (MeSH) and dimethyl sulfide (DMS) on the odor properties of three wine models-WM- (young white, young red and oaked red wines) was studied. Wine models were built by mixing a pool of common wine volatile and non-volatile compounds and further spiked with eight different combinations of the three sulfur compounds present at two levels (level 0: 0 μg L and level 1: 40 μg L of HS, 12 μg L of MeSH; 55 μg L of DMS). For each wine matrix eight WMs were produced and further submitted to sensory description by Rate-All-That-Apply (RATA) method. Hydrogen sulfide and methanethiol were clearly involved in the formation of reductive aromas and shared th…
How the country-of-origin impacts wine traders’ mental representation about wines: A study in a world wine trade fair
Using data collected at a world wine trade fair, we study how the country-of-origin impacts wine traders’ mental representation about wines. In the analysis we use traditional exporters in Old (France) and New (Argentina) world wine countries in comparison to non-traditional exporters in Old (Switzerland) and New (Brazil) world wine countries. Three main findings are reported. First, the country-of-origin of wines was more important on guiding participants’ representations, than the category of countries the traders came from. Second, participants’ evocations were more precise and specific for traditional wine-exporting countries than for less traditional wine exporting countries. Finally, …
Structural approach of social representation: Application to the concept of wine minerality in experts and consumers
© 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…
Extrinsic attributes responsible for red wine quality perception: A cross-cultural study between France and Spain
Understanding quality perception requires focusing both on product proprieties and consumers' representations. The goal of this study was to access the representations of perceived extrinsic wine quality of consumers from two different wine regions in two European countries with an important wine tradition: La Rioja-RJ-(Spain) and Cotes du Rhone-CdR-(France). Twenty commercial red wines (ten from RJ and ten from CdR) were evaluated in terms of quality by means of a categorization task. Ninety-five French and 93 Spanish consumers had to categorize the 20 wines according to four levels of quality going from very low to very high quality. Three clusters of French and two of Spanish consumers h…
Orthonasal aroma characteristics of Spanish red wines from different price categories and their relationship to expert quality judgements
Background and Aims: Research aimed to define the olfactory sensory spaces of Spanish red wines from different price segments and to determine relationships between sensory descriptors and quality as evaluated by experts. Methods and Results: A trained panel using a frequency of citation method assessed the orthonasal sensory characteristics of 96 Spanish wines belonging to three price segments (premium; high standard; low standard). Eleven robust sensory terms were built by combining similar terms using statistical criteria. A panel of experts consistently assessed quality. Negative aroma profiles, some of them very skewed, were identified in the different sets with 'animal', 'undergrowth'…
Sensory-active compounds influencing wine experts' and consumers' perception of red wine intrinsic quality
© 2014 Elsevier Ltd. There is a lack of studies focusing on the chemical compounds involved in quality perception. The present work combines both sensory and chemical approaches with the final goal of evaluating the sensory-active compounds influencing wine experts' and consumers' perception of red wine quality. Perceived quality was categorised by 108 consumers and 119 experts according to four levels going from very low to very high quality. In parallel, samples were described by a descriptive trained panel and volatile and non-volatile chemicals with known sensory activity were quantified. Wines with higher concentrations of eugenol, E- and Z-whiskylactones and 4-ethylphenol (discussed i…
Modulation of bitterness by aroma: cross modal interactions in red wine
Póster presentado en la Seventh European Conference on Sensory and Consumer Research (Eurosense 2016), celebrada en Dijon del 11 al 14 de septiembre de 2016.
Wine Quality Perception: A Sensory Point of View
Wine is a complex product, which had moved from a nutritional food to a hedonic beverage in consumer representation. This fact has increased the demand of quality products in the market. In this context, it is of high interest for wine producers to understand the underlying indicators of consumers’ quality perception as well as the relative importance they attach to these cues when inferring quality in wine to reach the alignment of consumers’ expectations, needs and wants. This chapter is aimed at giving an overview of the current state of knowledge of the indicators of wine quality perception from a sensory point of view. For this purpose, the factors driving perceived quality of wine as …
Sensory and chemical drivers of wine minerality aroma: An application to Chablis wines
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 …
Factores implicados en la percepción de calidad : Estrategias para la evaluación de la calidad organoléptica de los vinos
Titre traduit en français : "Facteurs impliqués dans la perception de la qualité : Stratégies d'évaluation de la qualité organoleptique des vins"; International audience; Definir el término calidad en el vino resulta complicado y no hay una definición universal: el carácter multidimensional de la calidad está relacionado con factores como la situación en la que se consume el vino, el entorno y la ocasión, las propiedades del producto en sí y quién es el consumidor.
Perception of wine quality according to extrinsic cues: The case of Burgundy wine consumers
International audience; The value consumers put on specific products depends on the information they can get from experience and from the commercial description of the products. For wine, this information derives mainly from tasting (intrinsic factors) and from the packaging of the bottles (extrinsic factors). The main purpose of this work is to compare different methodologies able to disclose the extrinsic factors playing an important role in wine quality perception of consumers. Twenty-four Chardonnay commercial wines were selected according to different criteria such as origin, denomination of origin and information provided in the label or back label. Forty-eight participants living in …