3Nurul Islam M, Mohd B M N Azemi. Rheological properties of calcium treated hydroxypropyl rice starcles[J]. Starch-Starke, 1997,49(4) :136-141.
4Internationl Organization for Standardization. ISO- 11216-1998 (E) Modified starch determination of content of earboxymethyl groups in carboxymenthyl starch[S].GENEVA, Switzerland:ISO, 1998.