## 3 Results and Discussion
### Instrumental Texture Parameters
Although UV-C may reduce the microbial proteolysis due to antimicrobial effect, it may increase the endogenous proteolysis rate by inducing protein denaturation, which favors substrate-enzyme binding,  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Parameters**} & \multirow{2}{*}{**Treatments \({}^{\mathsf{c}}\)**} & \multicolumn{4}{c}{**Days of Storage**} \\ \cline{3-6}  & & **0** & **3** & **6** & **9** \\ \hline \multirow{4}{*}{Hardness (\(N\))} & AP & \(21.08\pm 1.85\)\({}^{\mathrm{aw}}\) & \(15.55\pm 1.44\)\({}^{\mathrm{bx}}\) & \(12.16\pm 0.89\)\({}^{\mathrm{by}}\) & \(10.32\pm 0.82\)\({}^{\mathrm{bz}}\) \\  & OSP & \(20.98\pm 2.00\)\({}^{\mathrm{aw}}\) & \(18.23\pm 1.47\)\({}^{\mathrm{ax}}\) & \(15.51\pm 1.35\)\({}^{\mathrm{ay}}\) & \(12.79\pm 1.20\)\({}^{\mathrm{az}}\) \\  & AUV1 & \(21.13\pm 2.07\)\({}^{\mathrm{aw}}\) & \(12.88\pm 0.94\)\({}^{\mathrm{cx}}\) & \(10.08\pm 0.71\)\({}^{\mathrm{cy}}\) & \(7.86\pm 0.58\)\({}^{\mathrm{cz}}\) \\  & OSUV1 & \(20.64\pm 1.61\)\({}^{\mathrm{aw}}\) & \(18.57\pm 1.30\)\({}^{\mathrm{ax}}\) & \(14.73\pm 1.28\)\({}^{\mathrm{ay}}\) & \(12.70\pm 1.11\)\({}^{\mathrm{az}}\) \\  & AUV3 & \(21.14\pm 2.06\)\({}^{\mathrm{aw}}\) & \(10.31\pm 1.02\)\({}^{\mathrm{dx}}\) & \(8.09\pm 0.71\)\({}^{\mathrm{dy}}\) & \(7.06\pm 0.49\)\({}^{\mathrm{cy}}\) \\  & OPUV3 & \(20.79\pm 1.70\)\({}^{\mathrm{aw}}\) & \(18.52\pm 1.10\)\({}^{\mathrm{ax}}\) & \(15.04\pm 1.12\)\({}^{\mathrm{ay}}\) & \(12.77\pm 1.15\)\({}^{\mathrm{az}}\) \\ \hline \multirow{4}{*}{Chewiness (\(N\times\mathrm{mm}\))} & AP & \(5.80\pm 0.45\)\({}^{\mathrm{aw}}\) & \(4.03\pm 0.35\)\({}^{\mathrm{bx}}\) & \(3.45\pm 0.33\)\({}^{\mathrm{by}}\) & \(2.85\pm 0.22\)\({}^{\mathrm{bz}}\) \\  & OSP & \(5.78\pm 0.52\)\({}^{\mathrm{aw}}\) & \(4.76\pm 0.32\)\({}^{\mathrm{ax}}\) & \(4.00\pm 0.32\)\({}^{\mathrm{ay}}\) & \(3.44\pm 0.31\)\({}^{\mathrm{az}}\) \\  & AUV1 & \(5.73\pm 0.40\)\({}^{\mathrm{aw}}\) & \(3.43\pm 0.29\)\({}^{\mathrm{cx}}\) & \(2.75\pm 0.23\)\({}^{\mathrm{cy}}\) & \(2.07\pm 0.15\)\({}^{\mathrm{cz}}\) \\  & OSUV1 & \(5.81\pm 0.35\)\({}^{\mathrm{aw}}\) & \(4.79\pm 0.41\)\({}^{\mathrm{ax}}\) & \(3.96\pm 0.34\)\({}^{\mathrm{ay}}\) & \(3.43\pm 0.29\)\({}^{\mathrm{az}}\) \\  & AUV3 & \(5.83\pm 0.52\)\({}^{\mathrm{aw}}\) & \(2.81\pm 0.19\)\({}^{\mathrm{dx}}\) & \(2.17\pm 0.16\)\({}^{\mathrm{dy}}\) & \(1.76\pm 0.16\)\({}^{\mathrm{cz}}\) \\  & OPUV3 & \(5.84\pm 0.44\)\({}^{\mathrm{aw}}\) & \(4.73\pm 0.46\)\({}^{\mathrm{ax}}\) & \(3.97\pm 0.26\)\({}^{\mathrm{ay}}\) & \(3.40\pm 0.31\)\({}^{\mathrm{az}}\) \\ \hline \multirow{4}{*}{Cohesiveness (ratio)} & AP & \(0.330\pm 0.028\)\({}^{\mathrm{aw}}\) & \(0.339\pm 0.030\)\({}^{\mathrm{aw}}\) & \(0.337\pm 0.031\)\({}^{\mathrm{aw}}\) & \(0.342\pm 0.033\)\({}^{\mathrm{aw}}\) \\  & OSP & \(0.336\pm 0.028\)\({}^{\mathrm{aw}}\) & \(0.338\pm 0.029\)\({}^{\mathrm{aw}}\) & \(0.339\pm 0.029\)\({}^{\mathrm{aw}}\) & \(0.345\pm 0.027\)\({}^{\mathrm{aw}}\) \\  & AUV1 & \(0.343\pm 0.029\)\({}^{\mathrm{aw}}\) & \(0.345\pm 0.033\)\({}^{\mathrm{aw}}\) & \(0.344\pm 0.033\)\({}^{\mathrm{aw}}\) & \(0.338\pm 0.028\)\({}^{\mathrm{aw}}\) \\  & OSUV1 & \(0.343\pm 0.027\)\({}^{\mathrm{aw}}\) & \(0.345\pm 0.029\)\({}^{\mathrm{aw}}\) & \(0.342\pm 0.029\)\({}^{\mathrm{aw}}\) & \(0.337\pm 0.029\)\({}^{\mathrm{aw}}\) \\  & AUV3 & \(0.337\pm 0.033\)\({}^{\mathrm{aw}}\) & \(0.340\pm 0.024\)\({}^{\mathrm{aw}}\) & \(0.339\pm 0.031\)\({}^{\mathrm{aw}}\) & \(0.342\pm 0.029\)\({}^{\mathrm{aw}}\) \\  & OPUV3 & \(0.330\pm 0.031\)\({}^{\mathrm{aw}}\) & \(0.337\pm 0.030\)\({}^{\mathrm{aw}}\) & \(0.338\pm 0.028\)\({}^{\mathrm{aw}}\) & \(0.340\pm 0.030\)\({}^{\mathrm{aw}}\) \\ \hline \multirow{4}{*}{Springiness (ratio)} & AP & \(0.532\pm 0.046\)\({}^{\mathrm{aw}}\) & \(0.542\pm 0.045\)\({}^{\mathrm{aw}}\) & \(0.549\pm 0.045\)\({}^{\mathrm{aw}}\) & \(0.541\pm 0.049\)\({}^{\mathrm{aw}}\) \\  & OSP & \(0.541\pm 0.049\)\({}^{\mathrm{aw}}\) & \(0.543\pm 0.045\)\({}^{\mathrm{aw}}\) & \(0.544\pm 0.040\)\({}^{\mathrm{aw}}\) & \(0.542\pm 0.040\)\({}^{\mathrm{aw}}\) \\  & AUV1 & \(0.531\pm 0.049\)\({}^{\mathrm{aw}}\) & \(0.546\pm 0.050\)\({}^{\mathrm{aw}}\) & \(0.543\pm 0.044\)\({}^{\mathrm{aw}}\) & \(0.546\pm 0.042\)\({}^{\mathrm{aw}}\) \\  & OSUV1 & \(0.539\pm 0.035\)\({}^{\mathrm{aw}}\) & \(and by accelerating protein and lipid oxidation through ROS generation [8; 11; 12; 48].