Because of the strong demand for non-gelatin capsules, cellulose esters (such as hydroxypropylmethylcellulose, etc.), plant polysaccharides (such as pullulan, alginic acid, carrageenan and agar) and plant starch have been formed internationally. A new type of plant capsule product of three different types of raw materials represented by the class (such as modified corn starch, potato starch and sweet potato starch).