Abstract
Chitosan-based hydrogel containing antioxidant dihydroquercetin is developed. The optimal concentration of a cross-linking agent making it possible to obtain viscous fluid chitosan hydrogels capable of protractedly producing dihydroquercetin is found. During hydrogel formation and its storage, 86% of dihydroquercetin remains in the initial form, and production of no more than 14% of thermal oxidation products is observed. At the same time, the original content of the flavonoid in the hydrogel is shown to be 5 times greater than its solubility in water; the dihydroquercetin isolation from the hydrogel is 4 times slower than from a chitosan solution. Adaptogenic activity of hydrogel was demonstrated under hypobaric hypoxia conditions in vivo orally applied to experimental animals.
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Original Russian Text © I.A. Baranov, D.Yu. Dzhons, A.V. Budruev, A.E. Mochalova, L.A. Smirnova, A.S. Koryagin, 2015, published in Perspektivnye Materialy, 2015, No. 3, pp. 40–47.
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Baranov, I.A., Dzhons, D.Y., Budruev, A.V. et al. Long-acting bioactive composition based on chitosan and taxifolin. Inorg. Mater. Appl. Res. 6, 479–484 (2015). https://doi.org/10.1134/S2075113315050020
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DOI: https://doi.org/10.1134/S2075113315050020