Research Article

Microencapsulation of Ruellia tuberosa L. Aqueous Root Extracts Using Chitosan-Sodium Tripolyphosphate and Their In Vitro Biological Activities

Figure 2

Particle size distribution from microcapsules of R. tuberosa (L.) extracts prepared in pH 4, 0.1% (w/v) chitosan concentration and 90 min stirring time. The mean diameter was 53.41 μm.