## 3 Results and Discussion
### Comparison of the Effect of Detergent Products  
Liquid detergents usually have surfactants, enzymes, water-softening agents, and anti-redeposition agents added to improve their effect [40]. The current source of trypsin is mainly extracted from animal tissues, which is relatively expensive. When the ratio of alkaline protease and keratinase was set to 1:7, the washing effect can be close to the effect of using only trypsin. Therefore, alkaline protease and keratinase were selected for the \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Sample Number** & **A** & **B** & **C** & **D** \\ \hline Polyethoxylated fatty alcohol & 4 & 4 & 4 & 4 \\ Sodium alcohol other sulfate & 2 & 2 & 2 & 2 \\ Sodium dodecyl benzene sulfonate & 8 & 8 & 8 & 8 \\ Triethanolamine & 0.5 & 0.5 & 0.5 & 0.5 \\ Keratinase & 0.35 & 0.35 & 0.35 & 0.35 \\ Alkaline protease & 0.01 & 0.01 & 0.01 & 0.01 \\ Sodium Alginate & 1 & 1 & 1 & 1 \\ Sodium Gluconate & 1 & 0 & 1 & 0 \\ Sodium carboxymethyl Cellulose & 1 & 1 & 0 & 0 \\ Sodium Hydroxyethyl Cellulose & 0 & 0 & 1 & 1 \\
4 Azeolite & 0 & 1 & 0 & 1 \\ \(\alpha\)-cyclodextrintrin & 1 & 1 & 1 & 1 \\ Anhydrorous sodium citrate & 0.5 & 0.5 & 0.5 & 0.5 \\ Water & Margin & Margin & Margin & Margin \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Protease liquid detergent sample composition and ratio (%). \begin{table}
\begin{tabular}{c c c} \hline \hline
**Washing Performance** & \multicolumn{2}{c}{**Reflectivity (\%)**} \\ \cline{2-3}  & **Protein-Fouling Cloth** & **Blood-Dirty Cloth** \\ \hline Alkaline protease & 25.60 \(\pm\) 0.59 & 25.20 \(\pm\) 1.39 \\ Keratinase & 29.38 \(\pm\) 1.53 & 25.20 \(\pm\) 2.45 \\ Alkaline Protease: Keratinase & & \\
6:2 & 30.71 \(\pm\) 0.67 & 21.96 \(\pm\) 212 \\
4:4 & 30.33 \(\pm\) 0.43 & 24.99 \(\pm\) 245 \\
3:5 & 30.57 \(\pm\) 0.31 & 29.55 \(\pm\) 2.80 \\
2:6 & 30.11 \(\pm\) 1.81 & 25.34 \(\pm\) 2.39 \\
1:7 & 36.28 \(\pm\) 1.02 & 34.03 \(\pm\) 0.62 \\ (Alkaline protease + keratinase) + trypsin & & \\
75 \(\pm\) 5 & 35.78 \(\pm\) 1.37 & 38.30 \(\pm\) 1.14 \\
70 + 10 & 40.38 \(\pm\) 2.52 & 39.50 \(\pm\) 0.71 \\
65 + 15 & 36.73 \(\pm\) 1.29 & 39.23 \(\pm\) 1.40 \\
60 + 20 & 34.10 \(\pm\) 2.26 & 43.43 \(\pm\) 0.51 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Cleaning effect of protease compound on protein-fouling cloth and blood-dirty cloth. compound experiment. One or two detergent auxiliaries, enzymes, and basal detergents were combined to improve washing effects in the above experiments. Four liquid detergents with the highest sales volume on the e-commerce platform and the mixed protease detergent samples were selected to compare the effects and verify the decontamination performance of the composite detergent. The whiteness value of the protein-fouling cloth washed with formulas A, B, C, and D were significantly higher than the whiteness value of the protein-fouling cloth after washing with the selected four commercial detergents. The whiteness value of the blood-dirty cloths washed with formula B, C, and D were slightly higher than that of samples 1 and 4 and was basically the same as that of samples 2 and 3. The whiteness value of the blood-dirty cloths washed with formula A, B, C, and D were slightly higher than the whiteness value of the -cloths after washing with the selected four commercial detergents. Formula A exhibited stronger washing effects and detergency than commercial detergents (Table 7, Figure 6).