## 3 Results and Discussion
### Analysis of Volatile Compounds
\begin{table}
\begin{tabular}{l l l l l l} \hline \hline
**Parameters** & **Group 2** & **1 Day** & **3 Day** & **5 Day** & **7 Day** \\ \hline \multirow{8}{*}{hardness [N]} & NC & 19.59 \(\pm\) 0.38 & 19.15 \(\pm\) 0.83 & 18.19 \(\pm\) 0.80 & 18.38 \(\pm\) 0.42 \\  & PC1 & 18.99 \(\pm\) 0.58 & 19.21 \(\pm\) 0.77 & 18.31 \(\pm\) 0.79 & 17.76 \(\pm\) 0.75 \\  & PTEW1 & 18.58 \(\pm\) 0.70 & 17.68 \(\pm\) 0.63 & 17.58 \(\pm\) 0.44 & 17.96 \(\pm\) 0.83 \\  & PC2 & 18.48 \(\pm\) 0.48 & 17.78 \(\pm\) 0.61 & 18.66 \(\pm\) 0.85 & 19.33 \(\pm\) 0.61 \\  & PTEW2 & 18.74 \(\pm\) 0.42 & 17.58 \(\pm\) 0.65 & 17.36 \(\pm\) 0.69 & 17.93 \(\pm\) 0.74 \\  & NC & \(-\)0.015 \(\pm\) 0.001 & \(-\)0.014 \(\pm\) 0.001 & \(-\)0.015 \(\pm\) 0.001 & \(-\)0.014 \(\pm\) 0.001 \\  & PC1 & \(-\)0.014 \(\pm\) 0.001 & \(-\)0.013 \(\pm\) 0.001 & \(-\)0.015 \(\pm\) 0.001 & \(-\)0.014 \(\pm\) 0.001 \\ adhesiveness [J/cm\({}^{2}\)] & PTEW1 & \(-\)0.012 \(\pm\) 0.001 & \(-\)0.011 \(\pm\) 0.001 & \(-\)0.013 \(\pm\) 0.001 & \(-\)0.015 \(\pm\) 0.001 \\  & PC2 & \(-\)0.013 \(\pm\) 0.001 & \(-\)0.013 \(\pm\) 0.001 & \(-\)0.014 \(\pm\) 0.001 & \(-\)0.014 \(\pm\) 0.001 \\  & PTEW2 & \(-\)0.012 \(\pm\) 0.001 & \(-\)0.012 \(\pm\) 0.001 & \(-\)0.013 \(\pm\) 0.001 & \(-\)0.013 \(\pm\) 0.001 \\  & NC & 0.18 \(\pm\) 0.01 & 0.17 \(\pm\) 0.00 & 0.18 \(\pm\) 0.01 & 0.17 \(\pm\) 0.01 \\  & PC1 & 0.16 \(\pm\) 0.01 & 0.18 \(\pm\) 0.01 & 0.19 \(\pm\) 0.01 & 0.19 \(\pm\) 0.01 \\ cohesiveness [\(-\)] & PTEW1 & 0.16 \(\pm\) 0.01 & 0.17 \(\pm\) 0.01 & 0.17 \(\pm\) 0.01 & 0.17 \(\pm\) 0.00 \\  & PC2 & 0.18 \(\pm\) 0.01 & 0.16 \(\pm\) 0.00 & 0.19 \(\pm\) 0.01 & 0.18 \(\pm\) 0.01 \\  & PTEW2 & 0.18 \(\pm\) 0.01 & 0.19 \(\pm\) 0.01 & 0.17 \(\pm\) 0.00 & 0.17 \(\pm\) 0.01 \\  & NC & 0.14 \(\pm\) 0.02 & 0.12 \(\pm\) 0.01 & 0.14 \(\pm\) 0.01 & 0.13 \(\pm\) 0.01 \\  & PC1 & 0.14 \(\pm\) 0.01 & 0.13 \(\pm\) 0.01 & 0.14 \(\pm\) 0.00 & 0.15 \(\pm\) 0.01 \\ springiness [\(-\)] & PTEW1 & 0.13 \(\pm\) 0.00 & 0.12 \(\pm\) 0.00 & 0.13 \(\pm\) 0.01 & 0.14 \(\pm\) 0.00 \\  & PC2 & 0.14 \(\pm\) 0.01 & 0.13 \(\pm\) 0.00 & 0.14 \(\pm\) 0.00 & 0.14 \(\pm\) 0.00 \\  & PTEW2 & 0.14 \(\pm\) 0.01 & 0.12 \(\pm\) 0.01 & 0.12 \(\pm\) 0.00 & 0.15 \(\pm\) 0.00 \\ gumminess [N] & NC & 3.59 \(\pm\) 0.21 & 3.29 \(\pm\) 0.18 & 3.32 \(\pm\) 0.14 & 3.24 \(\pm\) 0.28 \\  & PC1 & 3.05 \(\pm\) 0.13 & 3.46 \(\pm\) 0.09 & 3.56 \(\pm\) 0.17 & 3.44 \(\pm\) 0.14 \\  & PTEW1 & 2.96 \(\pm\) 0.19 & 3.06 \(\pm\) 0.20 & 3.08 \(\pm\) 0.24 & 3.12 \(\pm\) 0.16 \\  & PC2 & 3.44 \(\pm\) 0.26 & 2.92 \(\pm\) 0.13 & 3.50 \(\pm\) 0.24 & 3.56 \(\pm\) 0.21 \\  & PTEW2 & 3.39 \(\pm\) 0.14 & 3.34 \(\pm\) 0.18 & 3.15 \(\pm\) 0.19 & 3.05 \(\pm\) 0.19 \\ \hline \hline \end{tabular}  
* SE—standard error; 2 NC—negative control (liver patés without a nitrite source); PC1—positive control (liver patés with 60 ppm of sodium nitrite); PTEW1—liver patés with plasma-treated egg white containing 40 ppm NO2 –positive control (liver patés with 120 ppm of sodium nitrite); PTEW2—liver patés with plasma-treated egg white containing 80 ppm NO2 –.  
\end{table} 
Table 6: The effect of plasma-treated egg whites on color parameters (mean \(\pm\) SE 1) of liver patés during storage. Figure 3: Principal component analysis of liver patés—day 1;NC—negative control (liver patés without a nitrite source); PC1—positive control (liver patés with 60 ppm of sodium nitrite); PTEW1—liver patés with plasma-treated egg white containing 40 ppm NO2 –; PC2—positive control (liver patés with 120 ppm of sodium nitrite); PTEW2—liver patés with plasma-treated egg white containing 80 ppm NO2 –. the rapid formation by oxidation of omega-6 fatty acids, is a commonly used indicator of meat off-flavors [67]. In the [PERSON] study [6], hexanal was not detected in the sodium nitrate-cured samples, and its concentrations in the plasma-treated samples were significantly lower compared to the uncured group.