Cereal Chem 69:82-84   |  VIEW ARTICLE

Dry Milling and Physical Characteristics of Alkali-Debranned Yellow Dent Corn.

A. H. Mistry and S. R. Eckhoff. Copyright 1992 by the American Association of Cereal Chemists, Inc. 

The physical characteristics and dry-milling performance of alkali-debranned and untreated yellow dent corn were compared using standard laboratory procedures. The debranned corn had approximately the same amount of protein and oil but half the crude fiber content of the untreated corn. The yields of No. 5, 7, and 10 grits were much higher for debranned corn than for untreated corn, with the milling evaluation factor for debranned corn at 454, compared to 277 for the untreated corn. Debranned corn degermed much faster, resulting in cleaner and easier separation of germ. Although the germ fraction obtained from the debranned corn was lower in yield, it was higher in oil content and thus 35% less germ would be required to extract the same amount of oil as from untreated corn. The crude fiber content of grits and germ fractions obtained from debranned corn was 40-50% less than that obtained from untreated corn. The bran obtained by debranning the corn contained more crude fiber than that contained in the hull obtained by aspiration of untreated dry-milled corn.