Adsorption isotherm, thermodynamics and kinetics studies of polyphenols separation from kiwifruit juice using adsorbent resin

► First report on separation of polyphenols from kiwifruit juice by adsorbent resin. ► The adsorption equilibrium is well described by the Freundlich isotherm model. ► The adsorption kinetics can be predicted by the pseudo first-order model. ► The adsorption is a physical, spontaneous and endothermic process.