With three different varieties of rice as raw material, high purity of rice starch were prepared by the enzymatic method of pronase. Main components, enzyme hydrolysability, damaged starch content, viscosity properties and texture properties of rice starch were investigated. The results indicated that content of total starch which prepared by the enzymatic method of pronase was more than 94%. Enzyme hydrolysability of rice starch which prepared by three different varieties of rice ranked as Jijing 88 〉 Enuo 9 〉 Jinyou 207, damaged starch cont...