Granular Structure of Buckwheat Starch and Resistant Starch

In the present study, some physical characteristics of buckwheat starch and resistant buckwheat starch such as particle size and crystal properties were explored. The results showed that the buckwheat starch granules were irregular polyhedrons or spheres in shape with diameters ranging from 7 to 8 μ m. Its crystal type was typically type A, and the crystallinity was 34.95% for tatary buckwheat starch and 26.92% for common buckwheat starch. The resistance buckwheat starch granules showed undefined shapes with diameter of 150 μ m and were amorphous.