Microparticles were produced according to the extrusion technology developed byLiserre, Ré, and Franco (2007), with adaptations. For that, an aerograph (Size of nozzle: 0.3 mm) model EW 110 was coupled to an air compressor Model MB24/BV, on air pressure of 2.72 kgf/cm2, using the height of 30 cm between the atomizing nozzle and the CaCl2 solution.