Storage stability and antioxidant activity of complex of astaxanthin with hydroxypropyl-β-cyclodextrin

► Storage stability of the astaxanthin/hydroxypropyl-β-cyclodextrin inclusion complex was evaluated. ► Complexation improved the stability of astaxanthin under storage conditions. ► Antioxidant activity of the astaxanthin/hydroxypropyl-β-cyclodextrin inclusion complex was assayed. ► Complexation affected the antioxidant activity of astaxanthin.