The present invention relates to a modified starch and a method for obtaining the modified starch by using a debranching enzyme, such as isoamylase, pullulanase, Limit dextrinase and the like. The debranching enzyme modified starch of present invention exhibits excellent film-forming capacity, film strength, and gelation ability, so as to be used as a material for making hard capsules without the use of coagulants and plasticizers.本發明係關於一種經由解支酶(如：異澱粉酶、普魯蘭酶、極限糊精酶(limit dextrinase)等)改質的澱粉材質，及其製備方法。本發明之解支酶改質澱粉材料具有良好的成膜性、膜片強度及凝膠化能力，可應用於在不使用凝結劑和增塑劑的條件下製造硬空膠囊。
