| 摘要 |
PURPOSE: To produce a carrier safe to human, having a large carrier capacity and capable of giving a formulation excellent in thermal and mechanical characteristics, good in stability, durability of effectiveness and delivery control by acting an enzyme on hallow particles of wet-heat treated starch to make the particles porous. CONSTITUTION: This method for producing hollow and porous carrier using starch is to obtain hollow particles of starch by wet-heat treating starch particles, act an enzyme having starch decomposing ability on the hollow starch particles to make the starch particles porous. Corn starch, high amylose corn starch, potato starch or wheat flour is used as the starch and is treated at 90-150 deg.C and 15-40% water content for 10 minutes - 15 hours. As the enzyme,α-amylase, glucoamylase, etc., can be used. In case of carrying an objective material thereto, the material is impregnated into the porous carrier and it is simple and highly efficient.
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