The high proportion of very
long chains also reflect the hypothesis that banana amylopectin
can retrograde and reassociate on cooling faster than other starch
amylopectins. It is known that retrograded starch is less accessible
to amylases and digests slower or less completely. Retrogradation
studies support the view that banana amylopectin retrogrades at
a substantially faster rate than corn or potato amylopectin leading
to less digestible starch.