Effect of antioxidant activity of caffeic acid with cyclodextrins using ground mixture method

Caffeic acid/α-cyclodextrin (molar ratio = 1/1), the vinylene group of the caffeic acid molecule appears to be included from the wider to the narrower rim of the ring of α-cyclodextrin. Caffeic acid /β-cyclodextrin (molar ratio = 1/1), the aromatic ring of the caffeic acid molecule appears to be included from the wider to the narrower rim of the ring of βCD. This suggests that forms of inclusion differed in the caffeic acid /α-cyclodextrin (molar ratio = 1/1) and the caffeic acid /β-cyclodextrin (molar ratio = 1/1).