Journal Articles

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    How distinctive are ‘Gewürztraminer’ vineyard terroirs in South Tyrol for wine production? A metabolomics-based approach
    (Elsevier B.V., 2024-07-17) Duley G; Ferretti CG; Morozova K; Longo E; Imperiale S; Ding Y; Poggesi S; Scampicchio M; Boselli E
    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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    A-HERO: Integrating Authenticity into the Psychological Capital Model
    (Springer Nature, 2024-08-01) Sutton A; Roemer A
    Authenticity was proposed as a potential addition to the Psychological Capital construct several years ago, but the PsyCap model has not yet been expanded. We review the theoretical and empirical support for the inclusion of authenticity and test this proposal in two studies. Study 1 examines the structural model of A-HERO (Authenticity, Hope, Efficacy, Resilience, Optimism) as an extended representation of the PsyCap construct. Study 2 tests the extent to which A-HERO may explain well-being. CFA demonstrates that the addition of authenticity provides slight improvement in overall PsyCap model fit. Hierarchical regression shows that the addition of authenticity to the PsyCap model improves the explanation of well-being, with beta values of comparable size to optimism and greater than efficacy. We therefore recommend that authenticity be included in PsyCap to provide a more holistic understanding of personal resources and to enable the further identification of interactions and potential synergies amongst A-HERO components.