# Aromatic Characterization of Grasevina Wines from Slavonia and Podunavlje Sub-Regions
## 4 Conclusions  
Aromatic profiling of Grasevina wine samples and other wine samples (Pinot Gris and Chardonnay) by quantifying 60 volatile organic compounds (VOCs) did not show differences, with the exception of \(\alpha\)-terpinene, \(\gamma\)-terpinene, 1,4-cineol, and 4-terpineol, which stood out. Accordingly, when comparing Grasevina wines to other wine samples made by the same producers, these four terpen were predominantly present at higher concentrations in Grasevina wines.  
Moreover, this study highlighted the differences in the aromatic composition of Grasevina wine originating from different sub-regions of Northern Croatia. Wine samples from the cooler continental climate of the Kutjevo district in the Slavonia sub-region were particularly correlated with some norisoprenoids and a wide range of monoterpenes in comparison to wines from the warmer Podunavlje sub-region. Interestingly, the aforementioned compounds potentially involved in the Grasevina aromatic signature, namely 1,4-cineole and \(\alpha\)- and \(\gamma\)-terpinene, were the most discriminative in distinguishing the sub-regions. Further studies are warranted to investigate the sensory impact of these terpen on Grasevina wines.  
The following supporting information can be downloaded at: [[https://www.mdpi.com/article/10.3390/beverages10020024/s1](https://www.mdpi.com/article/10.3390/beverages10020024/s1)]([https://www.mdpi.com/article/10.3390/beverages10020024/s1](https://www.mdpi.com/article/10.3390/beverages10020024/s1)), Table S1: Analyzed commercial wines and their producers with identification names and vintages. Table S2: Concentration levels (\(\mathrm{\SIUnitSymbolMicro g}\)/L) of 60 volatile compounds in all analyzed wine samples.  
Conceptualization, M.M., G.A., A.H., B.M.V. and L.B.; Data curation, M.M., G.A., L.B., V.O. and J.M.; Formal analysis, M.M., T.R.V. and A.H.; Funding acquisition, B.M.V. and L.B.; Investigation, M.M., G.A. and L.B.; Methodology, M.M. and G.A.; Project administration, B.M.V. and L.B.; Resources, M.S.L., B.M.V. and L.B.; Supervision, M.M. and L.B.; Validation, M.M., G.A., T.R.V., A.H. and L.B.; Visualization, M.M., A.H. and L.B.; Writing--original draft, M.M. and A.H.; Writing--review and editing, M.M., G.A., A.H., V.O., J.M., B.M.V., M.S.L. and L.B. All authors have read and agreed to the published version of the manuscript.  
The study was fully supported within the project Uncorking rural heritage: indigenous production of fermented beverages for local cultural and environmental sustainability, funded by Iceland, Liechtenstein and Norway through the EEA and Norway Grants Fund for Regional Cooperation--grant number 2018-1-0682.  
Not applicable.  
**Data Availability Statement:** Data are contained within the article or Supplementary Material.  
**Acknowledgments:** The project Uncoroking rural heritage: indigenous production of fermented beverages for local cultural and environmental sustainability benefits from a 1,501,000.00 EUR grant from Iceland, Liechtenstein, and Norway through the EEA and Norway Grants Fund for Regional Cooperation. The aim of the project is to foster the development of rural areas by improving common research capacity and knowledge dissemination applied to the \"terrori\" approach for wine and cider production in selected areas of Slovenia, Croatia, North Macedonia, and Norway. The sixth author ([PERSON]) would also like to express appreciation towards the Slovenian Research Agency for their financial support extended through the research core funding for the program Knowledge Technologies (No. P2-0103).  
**Conflicts of Interest:** The authors declare no conflicts of interest. The funders had no role in the design of the study, in the collection, analyses, or interpretation of data, in the writing of the manuscript, or in the decision to publish the results.  
Figure 17: The PCA score scatter plot (**top**) and biplot (loadings and score plot) (**bottom**) in the rotated space for 57 VOCs associated with 32 samples from 2 geographical sub-regions, Podunavlje (P) and Slavonia (S).