Preparation and Characterization of Water-Soluble Chitosan Microparticles Loaded with Insulin Using the Polyelectrolyte Complexation Method

Table 4

Effect of pH of TPP on association efficiency (AE) (𝑛=3).

pH of TPP	% AE (mean ± SD)
0.01 mol/LHCl	18.44 ± 5.4
3.0	33.35 ± 4.1
4.0	46.26 ± 2.6
5.0	29.75 ± 3.2
7.0	32.39 ± 2.8
9.7 (distilled water)	48.31 ± 1.6