The first fraction (f1) of the HPSEC profile corresponds to long chains of amylopectin (B2 and longer chains) and the second fraction (f2) corresponds to short chains of amylopectin (A and B1chains). The average chain lengths of amylopectin (CLw) of the 20 waxy rice starches ranged between 15.8 (WR11) and 18.7 (BW) Jane et al. (1999) reported that the CLw of cereal amylopectin ranged between 18.8 (waxy rice) and 23.5 (amylomaize VII).
Length of long amylopectin chains (f1) varied between 51.3 (WR11)