The optimal spray drying condition for maltodextrin as binding material was
found to be 1:1.5 (Mcore/Mwall, volume ratio of M. citrifolia L. extract to additive solution) at 95 C. The experimental values of the response variables correspond well to the predicted values.The microparticles obtained in this study represent an interesting food additive for incorporation into functional foods due to the presence of antioxidants.