RESVERATROL-HUMIC ACID LOADED COLLOIDAL POLYMERIC NANOPARTICLES: DESIGN OF EXPERIMENT AND IN VITRO EVALUATION

Abstract

Objective: The study aims at fabrication and optimization of co-encapsulated resveratrol and humic acid in colloidal polymeric nanocarriers to improves the stability of insoluble antioxidant, resveratrol. \nMethods: The Eudragit E100 polymeric material was used to fabricate oral co-encapsulation of resveratrol and humic acid in colloidal polymeric nanocarriers, called Res-HA-co-CPNs by an emulsification-diffusion-evaporation method. Taguchi orthogonal array design was employed to check the effect of formulation factors on in vitro physicochemical characteristics. The optimized formulation was further evaluated for stability studies at different conditions. \nResults: Optimized Res-HA-co-CPNs demonstrated spherical and smooth surface including mean PS 120.56±18.8 nm, PDI 0.122, ZP+38.25mV, and EE 82.37±1.49%. Solid-state characterizations confirmed that optimized Res-HA-co-CPNs showed amorphous characteristics. In vitro release profile of Res-HA-co-CPNs showed an outstanding sustained release behavior up to 48h and remain stable at the refrigerated condition for 6 mo. \nConclusion: Res-HA-co-CPNs would be a proficient and promising dosage form for increasing the stability of insoluble antioxidants, resveratrol.