Effect of Soil Type on Wines Produced from Vitis vinifera L. Cv. Grenache in Commercial Vineyards

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• 作者：Ruth de André ; s-de Prado ; Mar&iacute ; a Yuste-Rojas ; Xavier Sort ; Cristina André ; s-Lacueva ; Mireia Torres ; Rosa M. Lamuela-Raventó ; s
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2007
• 出版时间：February 7, 2007
• 年：2007
• 卷：55
• 期：3
• 页码：779 - 786
• 全文大小：75K
• 年卷期：v.55,no.3(February 7, 2007)
• ISSN：1520-5118

文摘

In recent years, the wine industry has become increasingly interested in the influence of the terroircharacteristics on the features of a wine and, in particular, the mechanisms by which a soil influenceswine quality. Among published papers on this topic, most merely describe the effect of the soil; fewexplain it. In this study were conducted a sensory evaluation and phenolic composition and stilbeneconcentration tests in order to analyze the effects of soil on wine. Significant differences were foundin the results of the tests conducted on two vineyards during two consecutive harvests in 2004 and2005. The results, in line with previous reports, show that the more fertile of the two vineyards, whichwas also the one with the greatest water-holding capacity, produced wines that presented significantlylower color intensity and shade, as well as lower total phenolic composition and a smaller quantity ofhydroxycinnamic compounds. In 2004, these wines presented significantly higher trans-resveratrolcontent, due to a fungal attack that was favored by the vineyard's soil characteristics. Extreme droughtconditions in 2005 had a marked impact on the characteristics of the wines, increasing wavelengthmeasurements significantly and reducing stilbene concentrations. Finally, sensory evaluations revealedsignificant differences between the wines produced on the two vineyards in both years for five of theseven attributes evaluated. No significant differences were found from one year to the next betweenthe wines produced from the same vineyard, indicating that the attributes of these wines weremaintained despite markedly different vintage conditions.