Abstract
A few properties of the starch of powdered buckwheat were examined after being refined with 0.2% sodium hydroxide solution with 85% methyl alcohol.
By a microscopic observation, it is found that starch grains are sometimes polygons and sometimes ellipses in their shapes and the diameter of each grain is between 2 and 15μ-the average about 6.1μ.
The diffraction pattern derived from the starch was examined with an X-ray diffractome ter. As the intensity of diffraction and the lattice distance of each fringe are the same as those of corn starch, it is recognized that the pattern of buckwheat starch belongs to the A-spectrum classified by Katz.
