7 research outputs found
Sensory traits and consumerâs perceived quality of traditional and modern fresh market tomato varieties: A study in three European countries
Consumer dissatisfaction with the flavor quality of many modern fresh market tomato varieties has fostered breedersâ interest in sensory quality improvement, and the demand for traditional varieties, which are generally associated with better flavor. To achieve further knowledge on the factors influencing the sensory quality and consumersâ preferences and perception, European traditional and modern fresh market tomato varieties were grown and evaluated in France, Italy, and Spain. Different growing conditions were tested in France (soilless vs. soil) and in Spain (open field vs. greenhouse), while in Italy fruits were evaluated at two ripening stages. Fruit quality was assessed by integrating physicochemical analyses, sensory profiles, and consumer tests. In all three countries, overall modern varieties were perceived as having more intense âtomato flavorâ and âoverall flavorâ than traditional ones. In France and Spain, consumersâ preferences were more oriented towards modern varieties than traditional ones. Significant growing condition effects were found on sensory and physicochemical traits, while the effect on consumersâ overall liking was not significant, largely depending on the genotype. A fair agreement between product configurations from descriptive analysis by trained assessors and Check-All-That-Apply (CATA) questions by consumers was observed. Penalty-lift analysis based on CATA allowed identifying positive and negative drivers of liking.Postprint (published version
Sensory Traits and Consumerâs Perceived Quality of Traditional and Modern Fresh Market Tomato Varieties: A Study in Three European Countries
Consumer dissatisfaction with the flavor quality of many modern fresh market tomato varieties has fostered breedersâ interest in sensory quality improvement, and the demand for traditional varieties, which are generally associated with better flavor. To achieve further knowledge on the factors influencing the sensory quality and consumersâ preferences and perception, European traditional and modern fresh market tomato varieties were grown and evaluated in France, Italy, and Spain. Different growing conditions were tested in France (soilless vs. soil) and in Spain (open field vs. greenhouse), while in Italy fruits were evaluated at two ripening stages. Fruit quality was assessed by integrating physicochemical analyses, sensory profiles, and consumer tests. In all three countries, overall modern varieties were perceived as having more intense âtomato flavorâ and âoverall flavorâ than traditional ones. In France and Spain, consumersâ preferences were more oriented towards modern varieties than traditional ones. Significant growing condition effects were found on sensory and physicochemical traits, while the effect on consumersâ overall liking was not significant, largely depending on the genotype. A fair agreement between product configurations from descriptive analysis by trained assessors and Check-All-That-Apply (CATA) questions by consumers was observed. Penalty-lift analysis based on CATA allowed identifying positive and negative drivers of liking
Qualité nutritionnelle du raisin de table : une étude pour définir les appétences des consommateurs
National audienceDans cette Ă©tude (projet Innoraisin), 18 variĂ©tĂ©s ont Ă©tĂ© analysĂ©es sur le plan sensoriel et biochimique pour apprĂ©hender la variabilitĂ© de lâespace sensoriel du raisin de table et saisir les prĂ©fĂ©rences du consommateur. Bien que le critĂšre santĂ© ne soit pas le mieux placĂ©, les rĂ©sultats suggĂšrent quâun produit Ă haute valeur nutritionnelle permettrait la crĂ©ation dâun nouveau segment spĂ©cifique. Dâautre part, ils dĂ©montrent quâune barquette multivariĂ©tĂ©s peut stimuler le consommateur dans une situation inhabituelle en haussant son consentement Ă payer. Enfin, si les traitements SDP tendent Ă diminuer les dĂ©chets, Ă augmenter la production et le pourcentage de catĂ©gorie Extra (non statistiquement significatif), aucune diffĂ©rence notoire nâa Ă©tĂ© observĂ©e du point de vue physiologique et/ou biochimique. Parmi les effets du stress hydrique, seul lâeffet tardif a Ă©tĂ© observĂ© avec des rĂ©sultats biochimiques Ă confirmer
Multisite evaluation of phenotypic plasticity for specialized metabolites, some involved in carrot quality and disease resistance
International audienceRenewed consumer demand motivates the nutritional and sensory quality improvement of fruits and vegetables. Specialized metabolites being largely involved in nutritional and sensory quality of carrot, a better knowledge of their phenotypic variability is required. A metabolomic approach was used to evaluate phenotypic plasticity level of carrot commercial varieties, over three years and a wide range of cropping environments spread over several geographical areas in France. Seven groups of metabolites have been quantified by HPLC or GC methods: sugars, carotenoids, terpenes, phenolic compounds, phenylpropanoids and polyacetylenes. A large variation in root metabolic profiles was observed, in relation with environment, variety and variety by environment interaction effects in decreasing order of importance. Our results show a clear diversity structuration based on metabolite content. Polyacetylenes, beta-pinene and alpha-carotene were identified mostly as relatively stable varietal markers, exhibiting static stability. Nevertheless, environment effect was substantial for a large part of carrot metabolic profile and various levels of phenotypic plasticity were observed depending on metabolites and varieties. A strong difference of environmental sensitivity between varieties was observed for several compounds, particularly myristicin, 6MM and D-germacrene, known to be involved in responses to biotic and abiotic stress. This work provides useful information about plasticity in the perspective of carrot breeding and production. A balance between constitutive content and environmental sensitivity for key metabolites should be reached for quality improvement in carrot and other vegetables