## 2 Materials and Methods  
### Sampling  
Six types of analogue meat products were evaluated in this study, including Frankfurter sausage (SuA), steak (StA), Hungarian sausage (KA), minced meat (MA), salami (SaA), and burger (BA). These analogue meats, which are alternatives to meat products, were compared with meat products, including sausage (SuM), steak (StM), Hungarian sausage (KM), minced meat (MM), salami (SaM), and burger (BM) (Figure 1). In total, 70 amples of meat analogues and 70 samples of meat products were analysed, including 10 samples each of MA, MM, BM, BA, KA, KM, SaA, and SaM and 15 samples each of StA, StM, SuA, and SuM. The sources of analogue meat and conventional meat product samples used in our study were retail markets in Brno city in the Czech Republic. Detailed information about the products that were used as samples in this study is shown in Table 1. The nutritional values and ingredients of the analogue meat products and conventional meat products are shown in Table 2, which is from our previous work [13].  
\begin{table}
\begin{tabular}{l c c c c c c} \hline \hline
**Sample Type** & **Product No.** & **Batch No.** & **Weight of Product (g)** & \begin{tabular}{c} **Storage** \\ **Temperature (°C)** \\ \end{tabular} & **Packaging Type** & **Producer** \\ \hline SuA & 15 & 1 & 200 & 1–7 & Vacuum & \begin{tabular}{c} Soya frankfurtes classic: from Well \\ Well rotavirus y.s.r.Hishsha \\ 498/19 73701 Cesk/ Pesin, Czech \\ Republic \\ \end{tabular} \\ SuM & 15 & 2 & 750 & Up to 6 & Protective atmosphere & \begin{tabular}{c} Potke sausages: from Hesco Stores CZ \\ a.s., Visovick 1527/68b, 100 0 P \\ Prague 10, Czech Republic \\ \end{tabular} \\ StaA & 15 & 1 & 180 & Up to 8 & Modified atmosphere & \begin{tabular}{c} Cesko s.r.o., Mezian Vodani 2035/31, \\ 143 20 Praha 4 \\ \end{tabular} \\ SuM & 15 & 1 & 300 & Up to 4 & Modified atmosphere & \begin{tabular}{c} Potke s: from Matsuki Agrion \\ s.r.o. Kuntz 27, 569 24, Czech \\ Republic \\ \end{tabular} \\ KA & 10 & 2 & 300 & Up to 8 & Vacuum & \begin{tabular}{c} Humanitarian klobana smoked \\ classic–veegan: from Good Nature \\ s.r.o., Kollorwa 88, 061 Martin, Slovakia \\ \end{tabular} \\ KM & 10 & 2 & 400 & Up to 20 & Protective atmosphere & \begin{tabular}{c} Pike Szeged ZH: H-6725 Szeged \\ Szabadskii it is, Hungary \\ Garden Government In Nestle \\ Cekso s.r.o., Mezian Vodani 2035/31, \\ 143 20 Praha 4, Czech Republic \\ \end{tabular} \\ MA & 10 & 1 & 200 & Up to 4 & Modified atmosphere & \begin{tabular}{c} Cesko s.r.o., Mezian Vodani 2035/31, \\ 143 20 Praha 4, Czech Republic \\ \end{tabular} \\ MM & 10 & 2 & 500 & Up to 8 & Modified atmosphere & \begin{tabular}{c} Kralupy s.r., Wozirozdoli 653, \\ 278 01 Kralupy mal Vltavou, Czech \\ Republic \\ \end{tabular} \\ SaA & 10 & 1 & 100 & 1–5 & Protective atmosphere & \
\begin{tabular}{c} Ostravksi 256,739 25 Sviadnov, \\ Czech Republic \\ \end{tabular} \\ SaM & 10 & 1 & 100 & 1–7 & Protective atmosphere &
\begin{tabular}{c} Junior s: family: from Kosteleclecke \\ uzeniny a.s., c.p. 588 61 Kosteleclec \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table}
Table 1: Information about the products used in this study.  
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Types**} & \multicolumn{5}{c}{**Nutritional Values per 100 g**} & \multicolumn{5}{c}{**Ingredients**} \\ \cline{2-7}  & **Protein** & **Saccharides** & **Fat** & **Salt** & **Fibre** & \\ \hline SuA & 18.0 & 4.9 including 1.0 sugars & 10 including 0.9 saturated fatty acids & 1.9 & 0.7 & Soya protein (10.86\%), rapesed oil, wheat protein (7.28\%), modified starch (E1422), salt, aromas, thickness—