## 3 Results and Discussion
### Water Activity, Density, Mechanical Properties, and Acoustic Emission
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Sample Code** & **Temperature (\({}^{\circ}\)C)** & **Water Activity** & **Density (g/cm\({}^{\circ}\))** & \begin{tabular}{c} **Number of** \\ **Acoustic Event** \\ \end{tabular} & \
\begin{tabular}{c} **Energy of One** \\ **Acoustic Event (a.u.)** \\ \end{tabular} &
\begin{tabular}{c} **Amplitude** \\ **(mV)** \\ \end{tabular} & **Force (N)** & **Work (m)** \\ \hline \multirow{3}{*}{HPMC 0.50\%} & 160 & 0.202 \(\pm\) 0.006 \({}^{\circ}\) & 1.215 \(\pm\) 0.023 & 1979 \(\pm\) 417 \({}^{\circ}\) a & 4527 \(\pm\) 120 & 1355 \(\pm\) 29 & 183 \(\pm\) 30 \({}^{\circ}\) a & 431 \(\pm\) 93 \({}^{\circ}\) a \\ \cline{2-7}  & 170 & 0.190 \(\pm\) 0.001 \({}^{\circ}\) & 1.225 \(\pm\) 0.019 & 3412 \(\pm\) 623 \({}^{\circ}\) c & 4468 \(\pm\)118 & 1351 \(\pm\) 29 & 250 \(\pm\) 50 \({}^{\circ}\) b & 662 \(\pm\) 154 b \\ \cline{2-7}  & 180 & 0.185 \(\pm\) 0.001 \({}^{\circ}\) & 1.258 \(\pm\) 0.033 & 2837 \(\pm\) 382 b \({}^{\circ}\) & 4484 \(\pm\)151 & 1352 \(\pm\) 36 & 206 \(\pm\) 33 \({}^{\circ}\) a & 529 \(\pm\) 125 a \\ \hline \multirow{3}{*}{Pyyllium 3.00\%} & \multicolumn{1}{c}{\(P\)-value} & 0.032 \({}^{\circ}\) & 0.349 & \(<\)0.001 \({}^{\circ}\) & 0.365 & 0.807 & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) \\ \cline{2-7}  & 160 & 0.163 \(\pm\) 0.001 \({}^{\circ}\) & 1.196 \(\pm\) 0.013 & 3872 \(\pm\) 691 \({}^{\circ}\) a & 4209 \(\pm\) 107 b & 1291 \(\pm\) 22 \({}^{\circ}\) b & 271 \(\pm\) 45 & 762 \(\pm\) 152 \\ \cline{2-7}  & 170 & 0.166 \(\pm\) 0.002 \({}^{\circ}\) & 1.164 \(\pm\) 0.017 & 4994 \(\pm\) 811 \({}^{\circ}\) b & 4175 \(\pm\) 157 \({}^{\circ}\) a & 1274 \(\pm\) 21 b & 265 \(\pm\) 55 & 729 \(\pm\) 166 \\ \cline{2-7}  & 180 & 0.181 \(\pm\) 0.001 b & 1.175 \(\pm\) 0.059 & 4852 \(\pm\) 658 \({}^{\circ}\) a & 4005 \(\pm\) 121 \({}^{\circ}\) a & 1196 \(\pm\) 32 \({}^{\circ}\) a & 228 \(\pm\) 53 & 600 \(\pm\) 179 \\ \hline \multirow{3}{*}{Pyyllium 5.00\%} & \multicolumn{1}{c}{\(P\)-value} & 0.002 \({}^{\circ}\) & 0.701 & 0.021 \({}^{\circ}\) & 0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & 0.100 \({}^{\circ}\) & 0.063 \\ \cline{2-7}  & 160 & 0.170 \(\pm\) 0.001 \({}^{\circ}\) & 1.225 \(\pm\) 0.012 & 4350 \(\pm\) 692 b \({}^{\circ}\) & 4164 \(\pm\) 91 b & 1292 \(\pm\) 23 b & 380 \(\pm\) 92 \({}^{\circ}\) a & 879 \(\pm\) 293 \({}^{\circ}\) a \\ \cline{2-7}  & 170 & 0.178 \(\pm\) 0.001 b & 1.241 \(\pm\) 0.009 & 3481 \(\pm\) 838 \({}^{\circ}\) a & 4168 \(\pm\) 79 b & 1273 \(\pm\) 21 b & 504 \(\pm\) 119 b & 1436 \(\pm\) 408 b \\ \cline{2-7}  & 180 & 0.177 \(\pm\) 0.001 b & 1.225 \(\pm\) 0.011 & 3525 \(\pm\) 817 \({}^{\circ}\) a & 4070 \(\pm\) 157 \({}^{\circ}\) a & 1203 \(\pm\) 44 \({}^{\circ}\) a & 463 \(\pm\) 38 \({}^{\circ}\) b & 1306 \(\pm\) 151 \\ \hline \multirow{3}{*}{_P_-value} & \multicolumn{1}{c}{\(P\)-value} & 0.007 \({}^{\circ}\) & 0.363 & 0.003 \({}^{\circ}\) & 0.004 \({}^{\circ}\) & 0.009 \({}^{\circ}\) & 0.008 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) \\ \cline{2-7}  & \multicolumn{1}{c}{\(P\)-value} & 0.441 & 0.030 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) \\ \cline{2-7}  & \multicolumn{1}{c}{\(P\)-value} & 0.269 & 0.023 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & 0.002 \({}^{\circ}\) & 0.621 & \(<\)0.001 \({}^{\circ}\) & 0.001 \({}^{\circ}\) \\ \cline{2-7}  & \multicolumn{1}{c}{\(P\)-value} & 0.397 & 0.005 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & \(<\)0.001 \({}^{\circ}\) & 0.251 & 0.040 \\ \hline \hline \end{tabular} \({}^{\circ}\)a\({}^{\leftarrow}\)d\({}^{\leftarrow}\)mean values denoted by different letters in columns differ statistically significantly p \(\leq\) 0.05.  
\end{table} 
Table 3: _Cont._During amplitude analysis, an inverse relationship was found. The control sample during the compression phase generated the sound with the highest amplitude, while the samples with Psyllium contents of 3% and 5% generated the sound with the lowest amplitude.