20.500.12556/DiRROS-28906 Innovative approaches to extracting phenolics from Echinacea purpurea maximizing yield and efficacy People have long been interested in plants rich in secondary metabolites and have tried to isolate them outside the plants. Purple coneflower is a crucial medicinal plant, known for its broad spectrum of bioactive substances. The type of solvent and the duration of maceration had an important impact on the phenolic level of purple coneflower leaves, flowers and roots. The flowers and leaves had a significantly higher phenolic concentration than the roots. The results of this study show the importance of stabilizing and regulating the polarity of the solvent and the duration of maceration to obtain the highest yield of phenolics from purple coneflower. The greatest yield of phenolics was gained with two natural extraction solvents, 5% acetic acid and glycerol, after 3 days of maceration, yielding (1696.05 mg 100 g$^{−1}$ DW) and (2796.94 mg 100 g$^{−1}$ DW) from the flowers of purple coneflower, respectively. For purple coneflower leaves and roots, the best extraction method was 40% ethanol after 3 days of maceration, and the total content analyzed was 1022.43 mg 100 g$^{−1}$ DW and 1011.32 mg 100 g$^{−1}$ DW, respectively. Different phenolics respond significantly to different maceration factors, but the best product from the flowers of purple coneflower is glycerol extract after 9 days of maceration. From the leaves of purple coneflower, we obtained the highest phenolic yield when producing extract in glycerol, a 40% ethanol tincture, or an acetic acid product after 3 days of maceration. purple coneflower phenolic compounds extraction efficiency solvents functional ingredients ameriški slamnik fenolne spojine ekstrakcija topila funkcionalne sestavine true false true Angleški jezik Slovenski jezik Neznano 2026-04-13 13:42:35 2026-04-13 13:42:36 2026-04-14 03:50:23 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 7. 7. 2025; 13 str. issue 13, [article no.] 2325 Vol. 14 Jun. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 63 2304-8158 10.3390/foods14132325 241590019 RAZ_Senica_Mateja_2025.pdf RAZ_Senica_Mateja_2025.pdf 1 3F99284B8AEA2575BA1432846B2CF484 23f0bc8be3a492f085fbc9e399d745b2d2815726c0839a6e226a4b75152b27ea fd7bffed-372d-11f1-9cc3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=43106 https://www.mdpi.com/2304-8158/14/13/2325 1 df7cea9a-372d-11f1-9cc3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=43105 Univerzitetni klinični center Ljubljana 0 0 0