2.2.2. Preparation of alginate and unmodified starch microparticles
The mixture was prepared by adding 0.4 g of corn starch to
alginate solution and microparticles were prepared as previously
described.
For lyophilization of these microparticles the following condi-
tions were used: 1.5 h at 35 C for freezing, then 18 h at 5 C
followed by 4 h at 20 C for drying.