First is the Effect on the particle size of fine grinding.
The median diameter of fine-ground WWFs groups had larger than the refined flour and smaller than the whole wheat flour. (with original millfeeds, that containing millfeeds without any fine grinding. )
And the fourth (4th) grinding group showed smaller particle size than the first (1st) grinding group. The particle size of WWF decreased from one hundred sixty micrometer (160 μm) to one hundred thirty-five micrometer (135 μm) with the increase grinding time.