. Chemicals
1,1-Diphenyl-2-picrylhydrazyl (DPPH) radical, FolineCiocalteu
reagent, and methanol were purchased from SigmaeAldrich
(Steinheim, Germany). Xanthan gum (MW, approximately 106)
pectin (82% degree of estertification (DE) and MW 85,000) and CMC
(High viscosity) were purchased from El-Gomhoria Company for
drugs and chemicals, Cairo.