Evaluation of new red winemaking technologies through consumer liking

Maurício Bonatto Machado De Castilhos,Ana Carolina Conti E Silva,Vanildo Luiz Del Bianchi

doi:10.1590/s1413-70542013000200008

Maurício Bonatto Machado De Castilhos, Ana Carolina Conti E Silva + Show 1 more

Open Access

https://doi.org/10.1590/s1413-70542013000200008

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Abstract

Several studies proposed changes in winemaking technology in order to improve wine quality, reflecting on its high acceptance. Thus, the aim of this work was to evaluate the influence of pre-drying and constant pumping effect technologies on sensory attributes of Bordô (Ives) and Isabel red wines through the acceptance evaluation of appearance, aroma, body, flavor and overall acceptance. Eighty consumers evaluated the samples using a 9-point structured scale and sensory data were analyzed by Cluster Analysis followed by Multidimensional Scaling. Significant differences (P<0.001) were observed in the comparison of the samples in all sensory attributes, highlighting the wide acceptance of the samples from innovative winemaking. In addition, Cluster Analysis showed the split of consumer preferences which revealed the higher preference and purchase intention of the pre-drying and static pomace wines. The correlation between flavor and overall acceptance was significant (P<0.001; r>0.700) and the consumer panel showed that the overall acceptance of the wines was influenced by the flavor, regardless of the other attributes. The higher acceptance of the pre-drying and static pomace wines suggests the potential of these winemaking processes.

Highlights

Red wine and its derivatives are produced in Brazil with American cultivars and hybrid grapes from Vitis labrusca species, which are responsible for more than 85% of the volume of grape production in Brazil (NIXDORF; HERMOSÍN-GUTIÉRREZ, 2010)
Scientific studies have shown that the habit of daily intake of red wine may be correlated to longevity, due to the presence of resveratrol that prevents the occurrence of cardiovascular diseases such as arteriosclerosis and thrombosis, controlling diabetes and reducing the risks of some cancers (GOLDFINGER, 2003)
Evaluation of wine quality is usually committed to wine experts, there are no evidences that these experts can predict consumer preferences, because segmentation on consumer preferences exists and leads to different approaches in wine assessment studies (KING et al, 2010; KING et al, 2011)

Summary

Introduction

Red wine and its derivatives are produced in Brazil with American cultivars and hybrid grapes from Vitis labrusca species, which are responsible for more than 85% of the volume of grape production in Brazil (NIXDORF; HERMOSÍN-GUTIÉRREZ, 2010). Scientific studies have shown that the habit of daily intake of red wine may be correlated to longevity, due to the presence of resveratrol that prevents the occurrence of cardiovascular diseases such as arteriosclerosis and thrombosis, controlling diabetes and reducing the risks of some cancers (GOLDFINGER, 2003). For these and other reasons, red wines from American cultivars are widely studied worldwide, especially regarding to sensory acceptance by consumers (CASTILHOS et al, 2012). Evaluation of wine quality is usually committed to wine experts, there are no evidences that these experts can predict consumer preferences, because segmentation on consumer preferences exists and leads to different approaches in wine assessment studies (KING et al, 2010; KING et al, 2011)

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