## 3 Results
### UAE Parameters Influence on the TPC, TFC and TAA
They used the cornelian cherry fruits from the spontaneous flora of the western part of Romania, collected in 2017, and indicated a content from 163.69 mg GAE/100g fresh weight (Strimba-Jiu village, Gorj county) to 359.28 mg GAE 100/g fresh weight (Hartagani village in Hunedoara) of total phenolic compounds. In order to analyze the ultrasound effect on the internal mass transfer, the TPC, TFC and TAA values were plotted versus the specific energy consumption (Figure 3). It can be observed that the use of ultrasound does not increase the highest TPC (Figure 3a) value obtained by conventional extraction (C8, Table 1), which indicates that there is no internal resistance to the mass transfer when using the cornelian cherry to recover bioactive compounds. The same conclusion could be formulated in the case of the TAA (Figure 3c) and the TFC (Figure 3b). \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{3}{*}{**Variables**} & \multicolumn{2}{c}{**TPC**} & \multicolumn{2}{c}{**TFC**} & \multicolumn{2}{c}{**TAA**} \\  & \multicolumn{2}{c}{**(mg GAE/g dw)**} & \multicolumn{2}{c}{**(mg QE/g dw)**} & \multicolumn{2}{c}{**(mg TE/g dw)**} \\ \cline{2-7}  & **F-Ratio** & \(p\)**-Value** & **F-Ratio** & \(p\)**-Value** & **F-Ratio** & \(P\)**-Value** \\ \hline X\({}_{1}\): Amplitude & 1.61 & 0.2457 & 0.73 & 0.4218 & 0.21 & 0.6590 \\ X\({}_{2}\): Cycle & 0.01 & 0.9440 & 0.05 & 0.8283 & 1.00 & 0.3516 \\ X\({}_{3}\): Time & 1.03 & 0.3433 & 7.56 & 0.0285 & 0.12 & 0.7383 \\ X\({}_{1}\)\({}^{2}\) & 0.01 & 0.9382 & 0.16 & 0.7048 & 0.40 & 0.5455 \\ X\({}_{2}\)\({}^{2}\) & 0.06 & 0.8164 & 5.15 & 0.0576 & 2.54 & 0.1553 \\ X\({}_{3}\)\({}^{2}\) & 0.39 & 0.5533 & 1.69 & 0.2352 & 0.10 & 0.7628 \\ X\({}_{1}\) X\({}_{2}\) & 0.21 & 0.6575 & 0.16 & 0.7048 & 0.01 & 0.9260 \\ X\({}_{1}\) X\({}_{3}\) & 0.72 & 0.4239 & 1.83 & 0.2182 & 0.00 & 0.9607 \\ X\({}_{2}\) X\({}_{3}\) & 0.01 & 0.9281 & 0.44 & 0.5265 & 0.13 & 0.7312 \\ \hline R\({}^{2}\) adjusted for d.f. & 0.00 & \multicolumn{2}{c}{0.3856} & \multicolumn{2}{c}{0.00} \\ \hline R\({}^{2}\) & 0.4299 & \multicolumn{2}{c}{0.7312} & \multicolumn{2}{c}{0.3923} \\ \hline Durbin–Watson statistic & 1.53 (\(p\) = 0.07) & 1.61 (\(p\) = 0.10) & 2.05 (\(p\) = 0.33) \\ \hline \hline \end{tabular}
\end{table} 
Table 4: F-test ratio, coefficient of regression R\({}^{2}\), Durbin-Watson statistic and \(p\)-values of the predicted model for TPC, TFC, and TAA from cornelian cherry ultrasound-assisted extraction. Figure 3: Effect of the specific energy delivered in the UAE extraction on TPC **(a)**, TFC **(b)**, and TAA (c), as a function of the sonication amplitude. Key: \(\diamond\), 40%; \(\square\), 60%; \(\bigcirc\), 80%; \(\bigtriangleup\), 100%; \(\bullet\), conventional extraction. In the UAE experiments, we did not obtain a good trend for the response variables; so, from our results, the conventional extraction allowed us the higher recovery of the bioactives from _Cornus mas_ fruits. In addition, the antioxidant power of correlian cherry fruits depends on the genotype (cultivar) as well the geographical region of its cultivation, the climatic condition, the maturity, and the collection or storage and preparation conditions [41]. [PERSON] et al. [15] reported that for the cornelian cherry from a controlled culture, the TPC ranged from 2.04 g GAE/ 100 g dw to 4.42 g GAE/100 g dw for the extracts obtained by ultrasound-assisted extraction. For the methanol extracts obtained at 30 \({}^{\circ}\)C under ultrasound action for 60 min, [PERSON] and [PERSON] [40] found an average content of flavonoids of 59.37 mg QE /100 g for the comnelian cherry collected from the village of Batica, Hunedoara county. The cornelian cherry fruits possess high antioxidant activity with a huge variation among _Cornus mas_ genotypes. The six wild cornelian cherry fruits from the western part of Romania have a variation of the total antioxidant activity between 1.24 and 2.71 mMol TE/ 100 g FW. The higher antioxidant activity was found for the genotype collected from the village of Hartagani, Hunedoara county [42].