Figure 3.
Determination of diameter of wet alginate microcapsules: (a) Light microscopic image of wet uncoated alginate microcapsules. The average size was 412.54 ± 28.83 µm. (b) SEM images of freeze-dried uncoated alginate microcapsules. (c,d) Shape and surface of uncoated alginate microcapsules, (e,f) chitosan-coated alginate microcapsules, and (g,h) Eudragit L100-55-coated microcapsules by SEM. The average size was determined by using 50 microcapsules.