Patent ID: 7938345

Claim:
A method for fractionating corn kernel comprising: supplying a feed stream of corn kernel to an impact mill; processing the feed stream through the impact mill to form a fractionated kernel stream; separating the fractionated kernel stream in a first screener to provide three process streams, a first endosperm unders stream, a first mids stream and a first overs stream; processing the first overs stream through a first aspirator to provide two process streams, a first bran-rich unders stream, and a second overs stream; serially processing the second overs stream through a first roller mill and a second screener to provide three process streams, a second endosperm unders stream, a second mids stream and an thirds overs stream; processing the third overs stream through a second aspirator to provide two process streams, an second bran-rich unders stream, and a fourth overs stream; serially processing the fourth overs stream through a second roller mill and a third screener to provide three process streams, a third endosperm unders stream, a third mids stream and a fifth overs stream; and serially processing the fifth overs stream, alone or in combination with an additional overs stream through a third roller mill and a fourth screener to provide two process streams, a fourth endosperm unders stream, and a sixth overs stream.