An alternative method for increasing the hydrophobicity of
starch granules is through heat-treatment (physical modification)
(Seguchi, 2001). Dry-heating of starch changes the surface character
from hydrophilic to hydrophobic only by altering the nature of
the surface proteins. Thus no specific labelling is required for use in
food applications as the alteration is explicitly occurring on the
granule surface (Seguchi, 2001).