The present invention provides a process to remove the bran and the germ
from the endosperm of a corn kernel. The process includes use of an
apparatus having a chamber to induce rubbing between adjacent corn
kernels to remove bran and an apparatus for germ removal having
frictional cylindrical rollers rotating substantially parallel to one
another, in opposing directions, and tensioned to impart low-impact
friction forces to each corn kernel drawn between the roller surfaces.
The process of the present invention includes a tempering step including
adding an amount of moisture to the bran of the corn kernel by wetting
and soaking the corn kernel; a bran removal step for removing
substantially all bran from the corn by rubbing corn kernels together; a
second tempering step including adding an additional amount of moisture
to the exposed germ by wetting and soaking the exposed germ; and a
degermination step to fracture the endosperm about the germ,
substantially freeing the germ from the endosperm.