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Effect of micro-oxygenation on sensory characteristics and consumer preference of Cabernet Sauvignon wine

Giuseppina Paola Parpinello, François Plumejeau, Chantal Maury, Andrea Versari; Journal of the Science of Food and Agriculture, Volume 92, Issue 6, pa

The main objective of this study was to improve the structure of a Cabernet Sauvignon red wine in a short period of time by micro-oxygenation (MOX) at high rates (25 and 50 mL L−1 month−1), the effects of which were evaluated based on sensory characteristics and consumer preference. Sensory data were analysed by principal component analysis, discriminant analysis and ordinal logistic regression (OLR). MOX led to significant differences in the colour, colour stability and phenolic compounds of wine. Sensory characteristics also changed through MOX treatment, and wine experts were able to discriminate between MOX-treated and untreated samples, with olfactory intensity, complexity, astringency and roundness being the main discriminating characteristics. Ordinal logistic regression enabled identification of the sensory characteristics that drove consumer preference. MOX at high rates improved the sensory characteristics of wine and may therefore be considered a valid technique for obtaining structured wines in a short period of time, i.e. within just a few months after the vintage. The results highlight the need for (i) careful selection of the MOX dosage rate and duration (the 25 mL L−1 month−1 dose for 6 days provided the best result) and (ii) continuous monitoring of the MOX treatment. (We recommend that you consult the full text of this article)
Published on 02/13/2013
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