Amylose products as matrix former for programmed release systems, process for preparing these amylose products, and process for making programmed release systems

The invention relates to matrix-forming amylose products for programmed release systems and a process for the preparation thereof. These amylose products have a dextrose equivalent (DE) of 5 to 10, a content of long-chain amylose of 20 to 40 wt. % on dry substance, a content of short-chain amylose of 40 to 80 wt. % on dry substance and a specific surface area of 0.4 to less than 1.0 m.sup.2 /g.