Keywords: α-CD; alpha-cyclodextrin; AC; antioxidant activity; ABTS; 2,2â²-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid; β-CD; beta-cyclodextrin; DZ; daidzein; EE (%); encapsulation efficiency (%); FE-SEM; field emission scanning electron microscopy; FT-IR;