SAXS Investigations of Structural Changes after Gamma Ray Irradiation of Potato Starch and Starch Suspensions

Abstract

Abstract The products obtained after gamma irradiation with doses 9.1, 18.2, 36.3, 54.5 kGy of native starch and water suspensions of starch were investigated using small‐angle X‐ray scattering (SAXS). Relations between changes in the scattering curves (diminution of the intensity of the reflection related to distance d & 100 A and elevation of scattering curves) connected with destruction of long‐range ordering in starch granules, and the conditions of the irradiation process were observed. Irradiation influences the long‐range ordering more intensively in cases of native starch as compared with water suspensions of starch irradiated.