## 3 Results and Discussion
### Study of Emulsions' Stability
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Emulsion**} & \multicolumn{3}{c}{**Droplet Size (nm)**} & \multicolumn{3}{c}{**Polyldispersity Index**} \\ \cline{2-6}  & **5\({}^{\circ}\)C** & **20\({}^{\circ}\)C** & **40\({}^{\circ}\)C** & **5\({}^{\circ}\)C** & **20\({}^{\circ}\)C** & **40\({}^{\circ}\)C** \\ \hline EM-CL-2.5 & 389 \(\pm\) 11\({}^{\text{a}}\) & 421 \(\pm\) 9\({}^{\text{c}}\) & 422 \(\pm\) 14\({}^{\text{c}}\) & 0.24 \(\pm\) 0.01\({}^{\text{c}}\) & 0.28 \(\pm\) 0.02 \({}^{\text{a}}\) & 0.25 \(\pm\) 0.01 \({}^{\text{abc}}\) \\ EM-CL-5 & 440 \(\pm\) 17\({}^{\text{a}}\) & 511 \(\pm\) 12\({}^{\text{c}}\) & 500 \(\pm\) 25\({}^{\text{c}}\) & 0.23 \(\pm\) 0.03 \({}^{\text{ab}}\) & 0.25 \(\pm\) 0.03 \({}^{\text{ab}}\) & 0.27 \(\pm\) 0.01 \({}^{\text{a}}\) \\ EM-CL-10 & 463 \(\pm\) 18\({}^{\text{a}}\) & 628 \(\pm\) 32\({}^{\text{b}}\) & 891 \(\pm\) 29\({}^{\text{c}}\) & 0.25 \(\pm\) 0.03 \({}^{\text{a}}\) & 0.32 \(\pm\) 0.03 \({}^{\text{abc}}\) & 0.34 \(\pm\) 0.01 \({}^{\text{c}}\) \\ \hline EM-EU-2.5 & 254 \(\pm\) 13\({}^{\text{ab}}\) & 254 \(\pm\) 12\({}^{\text{ab}}\) & 400 \(\pm\) 56\({}^{\text{b}}\) & 0.30 \(\pm\) 0.04 \({}^{\text{ab}}\) & 0.32 \(\pm\) 0.01 \({}^{\text{b}}\) & 0.26 \(\pm\) 0.05 \({}^{\text{ab}}\) \\ EM-EU-5 & 323 \(\pm\) 12\({}^{\text{a}}\) & 416 \(\pm\) 42\({}^{\text{c}}\) & 462 \(\pm\) 26\({}^{\text{c}}\) & 0.28 \(\pm\) 0.01 \({}^{\text{b}}\) & 0.28 \(\pm\) 0.08 \({}^{\text{ab}}\) & 0.27 \(\pm\) 0.01 \({}^{\text{ab}}\) \\ EM-EU-10 & 450 \(\pm\) 7\({}^{\text{a}}\) & 508 \(\pm\) 19\({}^{\text{a}}\) & 908 \(\pm\) 40\({}^{\text{b}}\) & 0.26 \(\pm\) 0.03 \({}^{\text{ab}}\) & 0.30 \(\pm\) 0.02 \({}^{\text{ab}}\) & 0.32 \(\pm\) 0.04 \({}^{\text{b}}\) \\ \hline EM-CI-2.5 & 274 \(\pm\) 7\({}^{\text{a}}\) & 333 \(\pm\) 30\({}^{\text{abc}}\) & 371 \(\pm\) 18\({}^{\text{c}}\) & 0.28 \(\pm\) 0.03 \({}^{\text{ab}}\) & 0.27 \(\pm\) 0.03 \({}^{\text{ab}}\) & 0.30 \(\pm\) 0.01 \({}^{\text{b}}\) \\ EM-CI-5 & 310 \(\pm\) 15\({}^{\text{a}}\) & 402 \(\pm\) 21\({}^{\text{b}}\) & 597 \(\pm\) 135\({}^{\text{c}}\) & 0.30 \(\pm\) 0.02 \({}^{\text{ab}}\) & 0.28 \(\pm\) 0.04 \({}^{\text{ab}}\) & 0.30 \(\pm\) 0.02 \({}^{\text{b}}\) \\ EM-CI-10 & 413 \(\pm\) 36\({}^{\text{a}}\) & 487 \(\pm\) 31\({}^{\text{a}}\) & 723 \(\pm\) 58\({}^{\text{b}}\) & 0.27 \(\pm\) 0.05 \({}^{\text{a}}\) & 0.27 \(\pm\) 0.05 \({}^{\text{a}}\) & 0.27 \(\pm\) 0.05 \({}^{\text{a}}\) \\ \hline \hline \end{tabular}  
* \({}^{\text{a}}\): the different letters for the droplet size and polydispersity index parameters of the same sample within the row show that the results are significantly different (\(p<\) 0.05; Duncan test).  
\end{table} 
Table 2: Droplet size and polydispersity index of emulsions stored at different temperatures for 14 days. Figure 1: Changes in emulsion droplet size under different storage times at 5\({}^{\circ}\)C temperature: (**a**)—CL emulsions; (**b**)—EU emulsions; (**c**)—CI emulsions; (**c**)—CI emulsions; (**a**)—e: the different letters for the same sample during the storage time show that the results are significantly different (\(p<\) 0.05; Duncan test). The visual evaluation of the stability was carried out by observing sedimentation and creaming. At the same time, both destabilization processes of the emulsion, such as droplet coalescence/floculation, and solid sedimentation processes, can occur [43; 44]. In this work, storage stability was evaluated by calculating the sedimentation and creaming index after 2, 7, 10, and 14 days (Table 3). The sedimentation of the particles was observed after 2 days in all samples. When the samples were kept at 20 \({}^{\circ}\)C, the sedimentation index (6%) did not change during the storage period. Furthermore, the highest sedimentation was determined for emulsions kept at 40 \({}^{\circ}\) C and consisting of 5 and 10% active substances. The creaming of the emulsions was observed only after 10 days of storage at a temperature of 40 \({}^{\circ}\) C. The highest creaming index was determined for EM-EU samples, the CRI values ranged from 10 to 18%.