Characterization of sodium starch glycolate prepared using reactive extrusion and its comparisons with a commercial brand VIVASTAR®P

► Water uptakes of SSG were less than that for VIVASTAR®P. ► Liquid uptakes with 0.1 N HCl were similar for SSG and VIVASTAR®P. ► X-ray diffraction indicated crystallinity loss in both samples. ► VIVASTAR®P was regular in shape and had smooth surfaces. ► SSG was irregular in shape with jagged surfaces.