Asahi Kasei Chemicals Corporation

Sanwa Cornstarch Co., Ltd.

Ichirou Ibuki

Masaaki Endo

Kazuhiro Obae

Yoshihito Yaginuma

Junichi Takahara

Michihiro Sunago

Functional starch powder of 400% or more water retention capacity, 5 hr or more collapse time and 200 g or more gel indentation load. This functional starch powder is produced through the step of heating a starch raw material in the presence of water at 60 to 150&#xb0; C. so as to swell starch particles of the starch raw material and the subsequent step of drying the thus swollen starch particles so as to obtain a powder mixture comprising starch particles and, lying in the exterior thereof, amylose and amylopectin.

Functional starch powder

Disclosed is a solid preparation which comprises at least one active ingredient and at least one dissolution-controlling base substance and can be formed by compression molding, wherein the dissolution-controlling base substance contains 5.0 to 99.9% by weight (inclusive) of a modified starch having a moisture retaining capacity of 400% or more and a gel indentation load of 200 g or more, containing a water-soluble ingredient in an amount of 40 to 95% by weight, having particles passing through a 75 &#x3bc;m-mesh sieve in the proportion of 90% by weight or more and particles passing through a 32 &#x3bc;m-mesh sieve in the proportion of 20% by weight or more, and having an average particle diameter of not smaller than 20 &#x3bc;m and smaller than 50 &#x3bc;m.

Controlled release solid preparation

Growing community of inventors

Nobeoka, Japan

Ichirou Ibuki