## 3 Results
\begin{table}
\begin{tabular}{c c c} \hline \hline \multirow{2}{*}{**Fatty Acids**} & \multicolumn{2}{c}{**Vegetable Oils**} \\ \cline{2-3}  & **Milk Thistle** & **Borage** \\ \hline C16:0 & 7.93 \(\pm\) 0.81 \({}^{\text{a}}\) & 9.94 \(\pm\) 0.62 \({}^{\text{b}}\) \\ C16:1 & 0.16 \(\pm\) 0.08 \({}^{\text{a}}\) & 0.15 \(\pm\) 0.04 \({}^{\text{a}}\) \\ C18:0 & 5.25 \(\pm\) 0.25 \({}^{\text{a}}\) & 5.8 \(\pm\) 0.50 \({}^{\text{a}}\) \\ C18:1n9c & 35.31 \(\pm\) 1.06 \({}^{\text{a}}\) & 25.18 \(\pm\) 0.16 \({}^{\text{b}}\) \\ C18:2n-6 & 47.84 \(\pm\) 0.22 \({}^{\text{a}}\) & 35.43 \(\pm\) 0.69 \({}^{\text{b}}\) \\ C18:3n6 & nd & 19.79 \(\pm\) 0.65 \({}^{\text{b}}\) \\ C18:3 & 0.22 \(\pm\) 0.06 \({}^{\text{a}}\) & 0.54 \(\pm\) 0.05 \({}^{\text{a}}\) \\ C20:0 & 3.27 \(\pm\) 0.1 \({}^{\text{a}}\) & 0.25 \(\pm\) 0.04 \({}^{\text{b}}\) \\ C20:1 & nd & 2.90 \(\pm\) 0.22 \({}^{\text{b}}\) \\ \hline \hline \end{tabular} nd  
\end{table} 
Table 2: Content of fatty acids in the analysed oil samples (%). \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Parameter**} & \multirow{2}{*}{**Unit**} & \multicolumn{2}{c}{**Vegetable Oils**} \\ \cline{3-4}  & & **Milk Thistle** & **Borage** \\ \hline H\({}_{2}\)O & \% & 0.088 \(\pm\) 1.23 & 0.075 \(\pm\) 1.15 \\ P & mg\(\cdot\)kg\({}^{-1}\) & 47.7 \(\pm\) 2.31 \({}^{\text{a}}\) & 33.1 \(\pm\) 2.28 \({}^{\text{b}}\) \\ AN & mgKOH\(\cdot\)g\({}^{-1}\) & 5.17 \(\pm\) 0.21 \({}^{\text{a}}\) & 3.9 \(\pm\) 0.05 \({}^{\text{b}}\) \\ PV & mmolO\({}_{2}\cdot\)kg\({}^{-1}\) & 4.22 \(\pm\) 0.02 \({}^{\text{a}}\) & 2.83 \(\pm\) 0.01 \({}^{\text{b}}\) \\ NJ & g l\({}_{2}\cdot\)100 g\({}^{-1}\) & 121.47 \(\pm\) 0.25 \({}^{\text{a}}\) & 137.67 \(\pm\) 2.52 \({}^{\text{b}}\) \\ Induction Time & h & 4.53 \(\pm\) 0.03 & 4.28 \(\pm\) 0.03 \\ FFA & \% & 5.2 \(\pm\) 0.51 \({}^{\text{a}}\) & 1.9 \(\pm\) 0.17 \({}^{\text{b}}\) \\ \hline \hline \end{tabular} Values designated by different small letters in the columns of the table are significantly different (\(\alpha\) = 0.05).  
\end{table} 
Table 3: Primary physicochemical parameters in industrial oils. The polyphenol content varied by 71.3% between the respective samples, with the higher level of 7.18 mgGAE:g\({}^{-1}\) oil recorded for milk thistle oil. The corresponding value for forage oil was 4.19 mgGAE:g\({}^{-1}\) oil. The content of flavonoids in the analysed oils was 4.45 mg\(\cdot\)kg\({}^{-1}\) in milk thistle oil, which was significantly higher than in the case of forage oil (by 12.37%). Tocopherols are important lipophilic compounds with antioxidative properties (Table 5). The concentration of tocochromanols varied by 224.5% between the analysed oils. The \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & **L*** & **a*** & **b*** & **c** & **H** \\ \hline Milk thistle & 51.37 \(\pm\) 0.59 & 4.59 \(\pm\) 0.41 & 29.26 \(\pm\) 0.43 & 29.62 \(\pm\) 0.43 & 81.09 \(\pm\) 0.80 \\ Borage & 60.74 \(\pm\) 0.35 & 0.95 \(\pm\) 0.31 & 26.20 \(\pm\) 0.57 & 26.22 \(\pm\) 0.57 & 87.91 \(\pm\) 0.70 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Colour coordinates for milk thistle and forage oils. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Parameter**} & \multirow{2}{*}{**Unit**} & \multicolumn{2}{c}{**Vegetable Oils**} \\ \cline{3-4}  & & **Milk Thistle** & **Borage** \\ \hline Chlorophyll & & 2.68 \(\pm\) 0.03 \({}^{\text{a}}\) & 3.63 \(\pm\) 0.03 \({}^{\text{b}}\) \\ Carotenoids & mg\(\cdot\)kg\({}^{-1}\) & 49.85 \(\pm\) 0.11 \({}^{\text{a}}\) & 42.23 \(\pm\) 0.35 \({}^{\text{b}}\) \\ Flavonoids & & 4.45 \(\pm\) 0.04 & 3.96 \(\pm\) 0.04 \\ Polyphenols & mg GAE:g\({}^{-1}\) oil & 7.18 \(\pm\) 0.05 & 4.19 \(\pm\) 0.07 \\ \hline \hline \end{tabular} Values designated by different small letters in the columns of the table are significantly different (\(\alpha\) = 0.05).  
\end{table} 
Table 4: Content of total chlorophylls and carotenoids in the oils.