## 3 Results and Discussion
The use of a solution consisting of dimethiconl in cyclopentasiloxane BRB 1834; amodimethicone BRB 1288; and polydimethylsiloxane Silicone Oil 350 cSt, allows for the attainment of 0.681, 0.594, and 0.519% of tannins, respectively. The lowest values were observed for cyclopentasiloxane BRB CM 50 (0.314%) and phenyltrimethicone BRB PTM 20 (0.257%). Similar results were estimated for the silicone extracts obtained from wormwood raw materials. As shown in Table 4, the highest contents of extractives for both calendula (3.034%) and wormwood (3.988%) were obtained by using the extractant amodimethicone BRB 1288. The other polyorganosiloxanes exhibited fairly high rates of extraction. More significantly, the extractive contents ranged from 2092% to 2516% for calendula and from 3101% to 3430% for wormwood. It is interesting to note that aqueous extracts of calendula and wormwood contained only 0.100% of extractives. The results of a comprehensive study of the qualitative and quantitative contents of the main biologically active substances suggest that the selected polyorganosiloxanes can be used as extractants, and the obtained extracts should be offered as ingredients of complex action for emulsions for cosmetic purposes. Since biologically active substances possess specific functions and properties, it is interesting to investigate their antioxidant action, which is crucial for several functions in biotechnological applications. The antioxidant activity of samples of silicone plant extracts was determined by the Oyaizu method (FRAP method). The obtained results are presented in Table 5.  
After analyzing the obtained data (Table 5), it can be noted that the plant extracts based on mixed quantities of polyorganosiloxanes PEG-12, polydimethylsiloxane BRB 526, and amodimethicone BRB 1288 are characterized by the highest antioxidant activity (>3 compared to 20% of the ascorbic acid solution, which is 0.770). The use of a solution of dimethiconl in cyclopentasiloxane BRB 1834 also allows for the attainment of high rates \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{3}{*}{**Extract**} & \multirow{3}{*}{\
\begin{tabular}{c} **Solution of** \\ **Comparison** \\ \end{tabular} } & \multirow{3}{*}{
\begin{tabular}{c} **Aqueous** \\ **Extract** \\ \end{tabular} } & \multicolumn{6}{c}{**Polyorganosiloxanes**} \\ \cline{3-8}  & & & **BKB CM 50** & **BRB PTM 20** & **BRB 526** & **BRB 1834** & **BRB 1288** \\ \cline{2-8}  & & & & **Optical Density, D** & & & \\ \hline Calendula & 0.770 & 0.711 & 0.457 & 0.221 & 0.218 & \textgreater{}3 & 1.507 & \textgreater{}3 \\ \hline Wormwood & & 0.657 & 0.451 & 0.254 & 0.204 & \textgreater{}3 & 1.111 & \textgreater{}3 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Antioxidant activity of the silicone extracts. for the calendula and wormwood plant extracts (1.507 and 1.111, respectively). The use of one-component silicones of polydimethylsiloxane Silicone Oil 350 cSt, cyclopentassiloxane BRB CM 50, and phenyltrimethicone BRB PTM 20 does not permit the achievement of high levels of antioxidant activity. The values range between 0.204 and 0.457, which is lower than those obtained for the aqueous extracts of calendula (0.711), wormwood (0.657), and the reference solution (0.770). Based on these results, we can conclude that the extracts obtained using one-component silicones are characterized by a low antioxidant activity, although they contain biologically active substances. The mixtures of polyorganosiloxanes exhibited a better extraction capacity enhancing the antioxidant activity of the extracts. Accordingly, the obtained silicone plant extracts of biologically active substances can be used in the emulsions for cosmetic purposes. The relevant efficiency of extraction using polyorganosiloxanes can be explained by their physicochemical properties, including surface tension, fluidity, and the partition coefficient. Due to these characteristics, they penetrate better and faster through cell membranes leading to the extraction of biologically active substances.