# Highlighting the Terroir Influence on the Aromatic Profile of Two Romanian White Wines
## 3 Results and Discussion
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Indicator** & \multicolumn{2}{c}{**Silagiu Vineyard**} & \multicolumn{2}{c}{**Aiud Vineyard**} & \multicolumn{2}{c}{**Sarica Niculilet**} \\  & \multicolumn{2}{c}{**(Dealurtile Banatului)**} & \multicolumn{2}{c}{**(Podisul Transilvania)**} & \multicolumn{2}{c}{**Colinele Dobrogei**} \\ \hline Geology & limestone & limestone, clay & limestone, sand \\ Soil & rendzinas & rendzinas & chemrozems & chemrozems alluvial \\ Soil pH & 6.2–7.8 & 5.5–7.2 & 6.8–7.5 \\ Soil average temperature at 50 cm & 11.4 & 10.2 & 10.8 \\ Culture orientation & south, southeast, southwest & south, southeast, southwest & north \\ Time period & 2021 & 2009–2013 & 2021 & 2009–2013 & 2021 & 2009–2013 \\ Annual average temperature (\({}^{\circ}\)C) & 10.8 & 10.0 & 9.7 & 9.0 & 10.6 & 10.0 \\ Sum of the active & & & & & \\ temperatures \(\geq\)10 \({}^{\circ}\)C & 3292.4 & 3207.0 & 2896.7 & 2789.8 & 3396.1 & 3311.3 \\ (1 April–30 September) & & & & & & \\ ASD (hours: 1 April–30 September) & 1512.4 & 1493.6 & 1456.3 & 1409.9 & 1622.8 & 1607.3 \\ Precipitation (mm) & 406.2 & 385.6 & 468.7 & 413.2 & 278.5 & 266.7 \\ Oenoclimate aptitude index (IAOe) & 4648.6 & 4565 & 4134.3 & 4036.5 & 4990.4 & 4901.9 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Pedological and climatic characterization of the areas selected for the study (Dealurtile Banatului, Podsiul Transilvaniei, Colinele Dobrogei) in the year 2021, compared to the period 2009–2013 [3]. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Area** & **IAOe** & **Wine Type** & \(\mathbf{\Sigma_{\text{IAOeols}}}\) & \(\mathbf{\Sigma_{\text{Esters}}}\) & \(\mathbf{\Sigma_{\text{Acds}}}\) & \(\mathbf{\Sigma_{\text{Othes}}}\) & \(\mathbf{\Sigma_{\text{Total aromas}}}\) \\  & & & (**ug/L**) & (**ug/L**) & (**ug/L**) & (**ug/L**) & (**ug/L**) \\ \hline Silagiu/Dealurtile & 4648.6 & Feteasca alba & 20,470.00 & 3592.40 & 5667.09 & 175.62 & 29,905.11 \\ Banatului & 4648.6 & Feteasca regala & 22,615.17 & 3328.66 & 4724.84 & 191.83 & 30,860.5 \\ Aiud/Podisul & 4134.3 & Feteasca alba & 21,254.91 & 3195.90 & 5510.40 & 184.71 & 30,145.92 \\ Transilvaniei & & Feteasca regala & 24,135.16 & 3877.72 & 4403.52 & 188.31 & 32,604.71 \\ Sarica Niculilet/Colinele & 4990.4 & Feteasca alba & 17,902.73 & 3348.06 & 5290.35 & 205.71 & 26,746.85 \\ Dobrogei & & Feteasca regala & 24,538.48 & 3728.01 & 4920.15 & 222.94 & 33,409.58 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: The influence of the oenoclimate aptitude index on the total wine aromatic profile. between 20,470.00 ug/L and 22,615.17 ug/L, esters between 3328.66 and 3592.40 ug/L, and fatty acids between 4724.84 and 5667.09 ug/L. However, the total quantified values are very close between the two wines from Silagiu. Analysing the results obtained in the case of the Aiud vineyard, where the oenoclimatic aptitude index was lower, it can be noted that the quantities of alcohols present a higher value compared to Silagiu vineyard for the Feteasca regala. Slightly lower values are observed in the case of ester accumulation, for Feteasca alba wine, but for Feteasca regala, the value was higher than for Silagiu vineyard. It must be stated that the total of aromas determined in wines from Aiud vineyard was higher compared to the results obtained in the Silagiu Vineyard. The highest value of the oenoclimatic aptitude index was recorded in the Sarica Niculitel vineyard, with a value of 4990.4. Consequently, a significant accumulation of aroma compounds was observed, mainly for the Feteasca regala wine, where the total aromas reached 33,409.58 ug/L. It was observed that, for Sarica Niculitel vineyard, the aldehyde and terpene compounds (noted as others) reached the highest values. The identified aroma compounds in the selected wines were subjected to a PCA analysis. The applied multivariate statistical approach supported the potential importance assessment provided by the aroma data, as well as their interpretation, the conclusions statistically supporting the analysis.