The findings of this study suggest that addition of AA may
have some effects on the functionality of wheat starch particularly
after gelatinization of the samples. Morphological changes of the
starch granules in the presence of AA can be an indication of some
interactions between the starch granule-associated proteins and
AA. Apparently, when starch is in the form of granules, AA cannot
affect starch molecules. Nevertheless, fully gelatinization of starch
granules promotes the effects of AA on starch molecules. When the
granules were fully gelatinized, it was not possible to observe any
microscopic structure or X-ray pattern for these samples. However,
other possible experiments such as determination of the pasting
properties and the intrinsic viscosity of the samples showed some changes in the samples as a result of addition of AA. All theseindicated possible molecular degradation of starch by AA.