| Autor: |
Ćujić Nikolić N; Institute for Medicinal Plants Research 'Dr. Josif Pančić', Tadeuša Košćuška 1, 11000 Belgrade, Serbia., Jovanović M; Faculty of Medicine, Department of Pharmacy, University of Niš, Boulevard Dr. Zorana Đinđića 81, 18000 Niš, Serbia., Radan M; Institute for Medicinal Plants Research 'Dr. Josif Pančić', Tadeuša Košćuška 1, 11000 Belgrade, Serbia., Lazarević Z; Institute for Medicinal Plants Research 'Dr. Josif Pančić', Tadeuša Košćuška 1, 11000 Belgrade, Serbia., Bigović D; Institute for Medicinal Plants Research 'Dr. Josif Pančić', Tadeuša Košćuška 1, 11000 Belgrade, Serbia., Marković S; Institute of Technical Sciences of SASA, Knez Mihailova 35/IV, 11000 Belgrade, Serbia., Jovanović Lješković N; Faculty of Pharmacy Novi Sad, University of Business Academy, Trg Mladenaca 5, 21101 Novi Sad, Serbia., Šavikin K; Institute for Medicinal Plants Research 'Dr. Josif Pančić', Tadeuša Košćuška 1, 11000 Belgrade, Serbia. |
| Abstrakt: |
The study aimed to develop encapsulation systems to maintain the preservation of everlasting ( Helichrysum plicatum ) flower extract polyphenols. Spray-dried encapsulates were formulated using β-cyclodextrin (BCD) and 2-hydroxypropyl-β-cyclodextrin (HPBCD) as supramolecular hosts, and their macromolecule mixtures with the conventional carriers, maltodextrin (MD) and whey protein (WP). The obtained microparticles were comparatively assessed regarding technological, physicochemical, and phytochemical properties. The highest yields were achieved by combining cyclodextrins with whey protein (73.96% for WP+BCD and 75.50% for WP+HPBCD compared to 62.48% of pure extract). The extract-carrier interactions and thermal stability were evaluated by FTIR and DSC analysis, suggesting successful entrapment within the carriers. Carriers reduced the particle diameter (3.99 to 4.86 μm compared to 6.49 μm of pure extract), classifying all encapsulates as microsystems. Carrier blends made the particle size distribution uniform, while SEM analysis revealed the production of more spherical and less aggregated particles. The HPBCD provided the highest encapsulation efficiency, with the highest content of detected aglycones and slightly lower values of their glycosylated forms. An analysis of the dual macromolecule encapsulation systems revealed the highest bioactive preservation potential for SHE+MD+BCD and SHE+WP+HPBCD. Overall, macromolecule combinations of cyclodextrins and conventional biopolymers in the spray-drying process can enhance the functional properties of H. plicatum extract. |
