How distinctive are ‘Gewürztraminer’ vineyard terroirs in South Tyrol for wine production? A metabolomics-based approach

IF 4.8 Q1 AGRICULTURE, MULTIDISCIPLINARY Journal of Agriculture and Food Research Pub Date : 2024-07-14 DOI:10.1016/j.jafr.2024.101298
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Abstract

Vitis vinifera L. ‘Gewürztraminer’ produces distinctive, aromatic wines that are strongly influenced by their terroir. This metabolomic study used a data-driven approach, including Principal Component Analysis (PCA) and Multifactorial Analysis (MFA), to correlate a quali-quantitative multivariate concept of terroir (including soil characteristics, and altitude) with sensory, phenolic, antioxidant, and volatile profiles of wines. The study analyzed wines from seven ‘Gewürztraminer’ vineyards, chosen to minimize the variability due to climate differences. Based on the soil data, the vineyards were clustered into two distinct groups: clay silicate (Group A) and dolomitic (Group B) soils. Group A exhibited lower levels of aromatic compounds such as linalool and higher levels of phenolic compounds such as gallocatechin than Group B. These findings indicate that even small changes in terroir within the same region can significantly impact the chemical, functional (antioxidant), and sensory properties of ‘Gewürztraminer’ wines, highlighting the importance of terroir in wine production. Statistical analyses confirmed the significance of these correlations (p < 0.05), highlighting the need for further research into the intricate relationship between terroir and wine quality.

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南蒂罗尔的 "琼瑶浆 "葡萄园风土对葡萄酒生产有多大影响?基于代谢组学的方法
琼瑶浆 "葡萄酿造的葡萄酒风味独特、芳香浓郁,深受风土的影响。这项代谢组学研究采用数据驱动法,包括主成分分析法(PCA)和多因素分析法(MFA),将风土(包括土壤特性和海拔高度)的定性定量多变量概念与葡萄酒的感官、酚类、抗氧化剂和挥发性特征相关联。研究分析了七个 "琼瑶浆 "葡萄园的葡萄酒,选择这些葡萄园是为了尽量减少气候差异造成的变异。根据土壤数据,葡萄园被分为两个不同的组别:硅酸盐粘土(A 组)和白云石土(B 组)。与 B 组相比,A 组的芳香化合物(如芳樟醇)含量较低,而酚类化合物(如五倍子儿茶素)含量较高。这些研究结果表明,即使同一地区的风土条件发生微小变化,也会对琼瑶浆葡萄酒的化学、功能(抗氧化)和感官特性产生重大影响,突出了风土条件在葡萄酒生产中的重要性。统计分析证实了这些相关性的显著性(p < 0.05),强调了进一步研究风土与葡萄酒质量之间错综复杂关系的必要性。
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来源期刊
CiteScore
5.40
自引率
2.60%
发文量
193
审稿时长
69 days
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