Abstract
Ellagic acid (EA) is a polyphenolic bioactive with a wide range of pharmacological activities. Regrettably, it possesses poor solubility, stability and permeability (in the gastrointestinal tract); and first-pass metabolism. Therefore, to address these challenges, the present research was aimed to encapsulate EA in cyclodextrin nanosponges (CDNS). Herein, the melt method and microwave-assisted technique have been employed for crafting CDNS. EA was loaded in CDNS via freeze-drying, followed by appropriate characterization. EA-CDNS were also assessed for encapsulation, particle size, zeta potential, and polydispersity index, which presented satisfactory results. In vitro, antioxidant activity was conducted using the DPPH (2, 2-diphenyl-1-picrylhydrazyl) assay. The solubilization efficacy of EA was analyzed in distilled water and compared with CDNS, which demonstrated ten folds augmentation for the selected batch. A remarkable improvement in the photostability of EA was also observed after its inclusion. In nutshell, the results demonstrated the superiority of the melt method in terms of solubility, entrapment, photostability, and antioxidant potential.
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