Thus, reassociation
of long chains during retrogradation or storage
contributes to rigidity of gels as observed from rheology and gel
textural results. Mutation may change the distribution of amylopectin
chains and, consequently, affects the formation of cross-links
and double helices in retrograded starch gels. The amount of long
amylopectin chains was an important determinant in accelerating
the retrogradation of starch.