Orange peels were dehydrated using a freeze dryer (CHRIST Alpha 1-2 LD, France)for 72 h (at −50◦C and 0.001 mbar) and then finely ground using a coffee grinder (Moulinex®, France) to achieve a standard sizeof particles of ∼0.315 mm. The orange peel powder was placed in vacuum packaging bags and stored in a freezer maintained at 4◦C before experiments.