Complex coacervation process is based on the phase separation that takes place spontaneously when in an aqueous medium, two or more colloids of opposite charges (a polycation and a polyanion) are mixed in the presence of a dispersion of an active substance (Benita, 2006; Zhijian et al., 2011; Nakagawa & Nagao, 2012). A protein and a polysaccharide are generally used, such as gelatine and CMC. In the microencapsulation process by coacervation, the pH is a key parameter along with the relative ratio in which the colloids and the total polymeric concentration are mixed.