Whereas the proportion of amylose increase and the molecular flexibility was improved. The crystallinity of ST, MST-1, MST-2, MST-3, MST-4 were respectively 38.37%, 31.14%, 28.12%, 26.71%, 25.33%.

• XRD分析表明，ST，MST-1，MST-2，MST-3，MST-4的结晶度分别为38.；37%25，31