Synthesis of polyvinylpyrrolidone/mangosteen pericarp extract (MPE) fibered particles using electrospray

Abstract

The electrospray method was used to produce polyvinylpyrrolidone (PVP)/mangosteen pericarp extract (MPE) solids. The concentrations of PVP/MPE were 3 and 4 wt.% in ethanol solvent with the mass ratios of PVP/MPE of 10:0, 8:2, and 6:4 (w/w). The surface morphology of PVP/MPE solids was investigated by an optical microscope and a scanning electron microscopy (SEM). The PVP/MPE precursor solution with the concentration of 3 wt.% and the mass ratio of 8:2 produced PVP/MPE fibered particles. From its SEM image, the particles and fibers of the PVP/MPE fibered particles had average diameters of 819 and 84 nm, respectively. The FT-IR spectra of the PVP/MPE fibered particles showed that MPE was encapsulated in PVP matrix as the PVP/MPE fibered particles had sharper peaks for the carbonyl, alkene, and amide groups.