## 2 Results and Discussion
### Volatiles of Citrus Fiber/Blackberry Gels
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Volatiles**} & \multicolumn{5}{c}{**Ot**} & \multicolumn{5}{c}{**OAVs**} \\ \cline{2-9}  & **(\(\mathbf{\mu_{g}/kg}\))** & **BJ** & **F** & **10\%\_T** & **20\%\_T** & **10\%\_S** & **20\%\_S** \\ \hline \multicolumn{9}{c}{Alcohols} \\ \hline benzyl alcohol & 100 & 0.00 & 0.00 & 0.21 & 0.23 & 0.18 & 0.26 \\ \hline
1-octanol & 130 & 0.09 & 0.18 & 0.13 & 0.12 & 0.15 & 0.16 \\ \hline phenethyl alcohol & 1000 & 0.05 & 0.00 & 0.01 & 0.01 & 0.01 & 0.01 \\ \hline perilly alcohol & 1660 & 0.02 & 0.00 & 0.00 & 0.00 & 0.00 & 0.00 \\ \hline \multicolumn{9}{c}{Acids} \\ \hline hexanoic acid & 1000 & 0.00 & 0.02 & 0.04 & 0.03 & 0.04 & 0.04 \\ \hline nonanoic acid & 9 & 2.74 & 0.00 & 0.26 & 0.32 & 0.53 & 0.52 \\ \hline \multicolumn{9}{c}{Aldehydes and ketones} \\ \hline hexanal & 20 & 0.00 & 9.17 & 3.72 & 3.03 & 3.82 & 3.06 \\ \hline furaldehyde & 3 & 0.00 & 13.48 & 0.00 & 0.00 & 0.00 & 0.00 \\ \hline heptanal & 3 & 0.24 & 8.33 & 0.40 & 0.40 & 0.47 & 2.09 \\ \hline benzaldehyde & 5000 & 0.00 & 0.02 & 0.00 & 0.00 & 0.00 & 0.00 \\ \hline
2-heptenal & 13 & 0.00 & 0.00 & 5.06 & 5.23 & 5.35 & 5.93 \\ \hline
1-octen-3-one & 0.005 & 0.00 & 0.00 & 6166 & 6260 & 6952 & 7602 \\ \hline methyl heptenone & 140 & 0.00 & 0.35 & 0.00 & 0.00 & 0.00 & 0.00 \\ \hline octanal & 0.7 & 0.00 & 45.56 & 22.24 & 30.67 & 54.13 & 35.50 \\ \hline
2-octenal & 3 & 3.45 & 14.10 & 10.66 & 10.09 & 13.18 & 13.69 \\ \hline
2-nonenal & 0.1 & 0 & 143.5 & 69.9 & 68.5 & 81.7 & 80.5 \\ \hline decanal & 2 & 0.00 & 6.50 & 5.11 & 5.26 & 3.12 & 4.55 \\ \hline
2-decenal & 0.4 & 28.5 & 18.7 & 10.7 & 11.7 & 18.6 & 20.6 \\ \hline geranyl acetone & 60 & 0.31 & 0.12 & 0.08 & 0.09 & 0.10 & 0.12 \\ \hline  & \multicolumn{5}{c}{Terpenes} \\ \hline D-limonene & 10 & 0.74 & 60.32 & 36.84 & 36.30 & 49.62 & 50.59 \\ \hline guaiacol & 20 & 5.21 & 0.00 & 0.71 & 0.64 & 0.57 & 0.79 \\ \hline linalool & 6 & 3.90 & 1.97 & 1.36 & 1.29 & 0.89 & 0.87 \\ \hline nerol & 290 & 0.07 & 0.00 & 0.01 & 0.02 & 0.01 & 0.02 \\ \hline carvone & 6.7 & 0.00 & 2.66 & 0.00 & 0.00 & 0.00 & 0.00 \\ \hline \(\alpha\)-ionone & 0.6 & 21.83 & 2.52 & 1.92 & 2.33 & 4.98 & 2.60 \\ \hline \(\gamma\)-ionone & 0.07 & 59.71 & 0.00 & 36.86 & 35.43 & 47.86 & 46.71 \\ \hline \(\beta\)-ionone & 0.1 & 25.80 & 34.50 & 25.20 & 26.20 & 33.60 & 35.90 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: _Cont._ \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Volatiles**} & \multicolumn{5}{c}{**OAVs**} \\ \cline{2-5}  & **10\%\_T** & **20\%\_T** & **10\%\_S** & **20\%\_S** \\ \hline \multicolumn{5}{c}{Alcohols} \\ \hline
2-ethylhexanol & 0.09 & 0.07 & 0.07 & 0.10 \\ \hline benzyl alcohol & 0.12 & 0.09 & 0.13 & 0.17 \\ \hline
1-octanol & 0.11 & 0.11 & 0.16 & 0.19 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Odor activity values (OAVs) of blackberry juice, citrus fiber and citrus fiber/blackberry gels after storage. During storage, OAVs changed as expected since the amounts of volatiles changed. 1-octen-3-one, characterized by a fruity flavor note, had an extremely high OAV in all gels, and it was determined that for this volatile, OAVs increased over the storage period. 2-Nonenal and octanal (volatiles with green flavor note) and 2-decenal and 2-ocenal (volatiles with fatty flavor note) also had high OAVs. For D-limonene (citrus flavor note), OAV significantly decreased, while OAVs of \(\gamma\)-ionone and \(\beta\)-ionone were relatively similar to values after preparation. Flavor compounds were divided according to their specific flavor note descriptors, and their percentage contributions to the overall flavor profile of blackberry juice, citrus fiber and gels were calculated. In this work, 12 series were established: citrus, floral, fruity, green, fatty, berry, woody, herbal, earthy, minty, bready and spicy. Results were used for PCA analysis (Figure 1). PC1 accounted for 57.58% of total variance and PC2 for 32.96%. Citrus fiber/blackberry gels were on the left side of the PC1, but they were separated.