When the starch granule is heated up to the gelatinization temperature in excess water, the
granule swells several times its initial size as results of the loss of the crystalline order and
the absorption of water inside the granular structure (Whistler, 1964). The swelling
behavior of cereal starch is primary the property of its amylopectin content, and amylose
act as both dilutent and an inhibitor of swelling, especially in the presence of lipid (Tester
and Morrison, 1990).