## 3 Results
### Phenols Profile and Storage Stability  
The quantitative and qualitative profiles of the phenolic compounds identified in microcapsules with CE cores, PE, and in the extracts themselves are presented in Tables 3 and 4. The obtained chromatograms revealed eighteen phenolic compounds, including ten anthocyanins, seven flavonoids, and one phenolic acid. All of these compounds were identified in CE and PE, while thirteen compounds (eight anthocyanins, four flavonoids, and one phenolic acid) were detected in the microcapsules. The total content of phenolic compounds in CE was 27.92 mg/g and in PE it was 109.28 mg/g, while in microcapsules with a CE core, it ranged from 0.48 (A) to 1.27 (D) mg/g, while in microcapsules with a PE core, it ranged from 12.03 (E) to 40.07 (H) mg/g. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{**No. **} & \multicolumn{6}{c}{**Microcapsules**} & \multicolumn{6}{c}{**\(\mathbf{A}\)**} \\ \cline{2-13}  & **A** & **B** & **C** & **D** & **E** & **F** & **G** & **H** & **CE** & **PE** \\ \hline
1\({}^{\ast}\) & 0.02 \(\pm\) 0.00 \({}^{\ddagger}\) & 0.07 \(\pm\) 0.00 \(\lx@sectionsign\) & 0.05 \(\pm\) 0.00 \(\lx@sectionsign\) & 0.07 \(\pm\) 0.00 \(\lx@sectionsign\) & 0.08 \(\pm\) 0.02 \({}^{\ddagger}\) & 2.34 \(\pm\) 0.05 \({}^{\ddagger}\) & 1.46 \(\pm\) 0.01 \({}^{\ast}\) & 3.85 \(\pm\) 0.02 \({}^{\circ}\) \({}^{\ddagger}\) & 2.80 \(\pm\) 0.06 \({}^{\ddagger}\) & 12.15 \(\pm\) 0.01 \({}^{\ast}\) \\
2 & 0.02 \(\pm\) 0.00 \({}^{\ddagger}\) & 0.07 \(\pm\) 0.00 \(\lx@sectionsign\) & 0.05 \(\pm\) 0.00 \(\lx@sectionsign\) & 0.07 \(\pm\) 0.00 \(\lx@sectionsign\) & 0.73 \(\pm\) 0.00 \({}^{\ddagger}\) & 2.85 \(\pm\) 0.01 \({}^{\ddagger}\) & 1.40 \(\pm\) 0.00 \({}^{\ast}\) & 3.09 \(\pm\) 0.00 \({}^{\circ}\) & 2.77 \(\pm\) 0.01 \({}^{\ddagger}\) & 11.26 \(\pm\) 0.01 \({}^{\ast}\) \\
3 & 0.11 \(\pm\) 0.00 \({}^{\dagger}\) & 0.28 \(\pm\) 0.00 \({}^{\ddagger}\) & 0.19 \(\pm\) 0.01 \({}^{\ddagger}\) & 0.31 \(\pm\) 0.01 \({}^{\ddagger}\) & 2.62 \(\pm\) 0.00 \({}^{\dagger}\) & 7.52 \(\pm\) 0.00 \({}^{\ddagger}\) & 5.08 \(\pm\) 0.05 \({}^{\ddagger}\) & 9.77 \(\pm\) 0.09 \({}^{\ddagger}\) & 6.52 \(\pm\) 0.00 \({}^{\ddagger}\) & 23.98 \(\pm\) 0.79 \({}^{\ddagger}\) \\
4 & 0.10 \(\pm\) 0.06 \({}^{\ddagger}\) & 0.20 \(\pm\) 0.00 \({}^{\ddagger}\) & 0.17 \(\pm\) 0.00 \({}^{\ddagger}\) & 0.18 \(\pm\) 0.01 \({}^{\ddagger}\) & 1.83 \(\pm\) 0.02 \({}^{\ddagger}\) & 4.32 \(\pm\) 0.03 \({}^{\ddagger}\) & 3.38 \(\pm\) 0.11 \({}^{\ddagger}\) & 5.88 \(\pm\) 0.19 \({}^{\ddagger}\) & 4.16 \(\pm\) 0.04 \({}^{\ddagger}\) & 15.26 \(\pm\) 0.12 \({}^{\ddagger}\) \\
5 & 0.07 \(\pm\) 0.00 \({}^{\ddagger}\) & 0.20 \(\pm\) 0.01 \({}^{\ddagger}\) & 0.16 \(\pm\) 0.01 \({}^{\ddagger}\) & 0.22 \(\pm\) 0.00 \({}^{\ddagger}\) & 2.19 \(\pm\) 0.04 \({}^{\ddagger}\) & 5.49 \(\pm\) 0.16 \({}^{\ddagger}\) & 3.41 \(\pm\) 0.03 \({}^{\ddagger}\) & 4.71 \(\pm\) 0.06 \({}^{\ddagger}\) & 4.21 \(\pm\) 0.05 \({}^{\ddagger}\) & 17.45 \(\pm\) 0.65 \({}^{\ddagger}\) \\
6 & nd & nd & nd & nd & nd & nd & nd & 0.45 \(\pm\) 0.00 \({}^{\ddagger}\) & 2.02 \(\pm\) 0.08 \({}^{\ddagger}\) \\
7 & nd & nd & nd & nd & nd & nd & nd & 0.45 \(\pm\) 0.02 \({}^{\ddagger}\) & 1.99 \(\pm\) 0.02 \({}^{\ddagger}\) \\
8 & 0.10 \(\pm\) 0.08 \({}^{\ddagger}\) & 0.17 \(\pm\) 0.01 \({}^{\ddagger}\) & 0.17 \(\pm\) 0.01 \({}^{\ddagger}\) & 1.48 \(\pm\) 0.00 \({}^{\ddagger}\) & 3.48 \(\pm\) 0.10 \({}^{\ddagger}\) & 2.25 \(\pm\) 0  
Other phenolic compounds detected in microcapsules include phenolic acids and flavonoids. Their amount in microcapsules with a CE core was at very low levels of <0.01 and <0.07 mg/g, respectively. In turn, in microcapsules with PE, it was from 0.14 (E) to 0.33 mg/g (H) and from 0.51 (E) to 0.74 mg/g (F), respectively. Therefore, flavonoids present in blueberry extracts showed a higher affinity for the Alg + WPI carrier mixture. Chlorogenic acid was among the detected acids, while quercetin 3-\(O\)-glycos was among the dominant flavonoids. However, three flavonoids present in the extracts were not detected in microcapsules.