Spray-dried rosemary extracts: Physicochemical and antioxidant properties

► Spray-dried rosemary extracts were obtained following a 33 Box-Behnken design. ► In-process set of conditions had significant impact on the powder properties. ► Spray drying may be attractive in the development of new products of rosemary. ► Spray dried extracts may be used in nutraceutical therapy and food preservatives.