## 3 Results and Discussions
### Trolox-Equivalent Antioxidant Capacity (TEAC)  
In _gulupa_ pulp, the values found in TEAC were 1.13 \(\pm\) 0.01 umol TE/g measured as ABTS, and 3.3 \(\pm\) 0.1 umol TE/g measured as DPPH (Figure 1). These results are close to those reported for _gulupa_ with a state of more advanced maturation (ABTS 3.93 to 4.10 umol TE/g) [44]. In general, it was found that sonicated _gulupa_ pulp has a great antioxidant capacity, like other _Passifloras_ such as _P. ligularis_ juss (granadilla) and _P. foetida_ (wild passion fruit) [45; 46]. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Power (kHz)**} & \multirow{2}{*}{**Time (min)**} & \multicolumn{6}{c}{**Days after Treatment**} \\ \cline{3-8}  & & **0** & **4** & **8** & **12** & **16** & **20** \\ \hline Control & & 4.4 \(\pm\) 0.2 aA & 5.5 \(\pm\) 0.1 bC & 5.6 \(\pm\) 0.2 bcC & 5.5 \(\pm\) 0.2 bB & 5.7 \(\pm\) 0.1 cB & 5.9 \(\pm\) 0.1 dB \\  & 10 & 4.3 \(\pm\) 0.2 aA & 5.0 \(\pm\) 0.2 bA & 5.3 \(\pm\) 0.3 bB & 5.4 \(\pm\) 0.1 bcB & 5.4 \(\pm\) 0.1 bC & 5.5 \(\pm\) 0.1 cA \\
30 & 20 & 4.3 \(\pm\) 0.2 aA & 5.2 \(\pm\) 0.1 bA & 5.4 \(\pm\) 0.4 bcBC & 5.4 \(\pm\) 0.3 bcB & 5.3 \(\pm\) 0.2 bA & 5.6 \(\pm\) 0.1 cA \\  & 30 & 4.2 \(\pm\) 0.2 aA & 5.2 \(\pm\) 0.1 bA & 5.3 \(\pm\) 0.2 bB & 5.3 \(\pm\) 0.1 bA & 5.5 \(\pm\) 0.2 bcA & 5.8 \(\pm\) 0.3 cB \\  & 10 & 4.2 \(\pm\) 0.3 aA & 5.2 \(\pm\) 0.5 bA & 5.2 \(\pm\) 0.3 bA & 5.1 \(\pm\) 0.4 bA & 5.3 \(\pm\) 0.2 bC & 5.6 \(\pm\) 0.3 cA \\
40 & 20 & 4.3 \(\pm\) 0.3 aA & 5.3 \(\pm\) 0.8 bBC & 5.0 \(\pm\) 0.5 bA & 5.4 \(\pm\) 0.1 bB & 5.4 \(\pm\) 0.1 bA & 5.4 \(\pm\) 0.4 bA \\  & 30 & 4.3 \(\pm\) 0.2 aA & 5.2 \(\pm\) 0.1 bA & 4.9 \(\pm\) 0.4 bA & 5.3 \(\pm\) 0.2 bCA & 5.4 \(\pm\) 0.2 cA & 5.7 \(\pm\) 0.1 dB \\ \hline \hline \end{tabular} Data expressed as mean \(\pm\) standard deviation of three repetitions. In the same row, different lowercase letters indicate statistically significant differences between treatment days (\(p<0.05\)). In the same column, different capital letters indicate statistically significant differences between the treatments (\(p<0.05\)).  
\end{table} 
Table 2: Titratable acidity (g citric acid/100 g of pulp) during storage at 4 \({}^{\circ}\)C of _Passiflora edulis_ f. _edulis_ Sims (_gulupa_) pulp subjected to low-frequency ultrasound treatments. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Power (kHz)**} & \multirow{2}{*}{**Time (min)**} & \multicolumn{6}{c}{**Days after Treatment**} \\ \cline{3-8}  & & **0** & **4** & **8** & **12** & **16** & **20** \\ \hline Control & & 13.4 \(\pm\) 0.2 bB & 13.4 \(\pm\) 0.1 bB & 13.4 \(\pm\) 0.1 bB & 13.4 \(\pm\) 0.1 bB & 13.1 \(\pm\) 0.1 aB & 13.0 \(\pm\) 0.1 aA \\  & 10 & 13.6 \(\pm\) 0.3 aB & 13.5 \(\pm\) 0.2 aB & 13.3 \(\pm\) 0.1 aB & 13.3 \(\pm\) 0.1 aB & 13.4 \(\pm\) 0.1 aB & 13.3 \(\pm\) 0.1 aB \\
30 & 20 & 13.5 \(\pm\) 0.2 aB & 13.4 \(\pm\) 0.1 aB & 13.3 \(\pm\) 0.1 aB & 13.3 \(\pm\) 0.2 aB & 13.4 \(\pm\) 0.1 aB & 13.4 \(\pm\) 0.1 aB \\  & 30 & 14.8 \(\pm\) 0.1 aD & 14.8 \(\pm\) 0.1 aD & 14.7 \(\pm\) 0.1 aD & 14.7 \(\pm\) 0.1 aD & 14.7 \(\pm\) 0.1 aD \\  & 10 & 12.7 \(\pm\) 0.1 aA & 12.8 \(\pm\) 0.1 aA & 12.9 \(\pm\) 0.2 aA & 12.9 \(\pm\) 0.2 aA & 12.8 \(\pm\) 0.1 aA & 12.8 \(\pm\) 0.1 aA \\
40 & 20 & 13.9 \(\pm\) 0.1 aC & 13.8 \(\pm\) 0.1 aC & 13.8 \(\pm\) 0.1 aC & 13.8 \(\pm\) 0.0 aC & 13.9 \(\pm\) 0.1 aC \\  & 30 & 13.7 \(\pm\) 0.1 aC & 13.7 \(\pm\) 0.1 aC & 13.8 \(\pm\) 0.1 aC & 13.7 \(\pm\) 0.1 aC & 13.7 \(\pm\) 0.1 aC \\ \hline \hline \end{tabular} Data expressed as mean \(\pm\) standard deviation of three repetitions. In the same row, different lowercase letters indicate statistically significant differences between treatment days (\(p<0.05\)). In the same column, different capital letters indicate statistically significant differences between the treatments (\(p<0.05\)).  
\end{table} 
Table 3: Soluble solids (% \(w/v\)) during storage at 4 \({}^{\circ}\)C of _Passiflora edulis_ f. _edulis_ Sims (_gulupa_) pulp subjected to low-frequency ultrasound treatments.