CHEMICAL COMPOSITION OF MAIZE GRAIN 633 



as the hand-separated product. This is doubtless due to the CHAP 

 fact that some germs are broken or crushed in the hulling XIIL 

 machine, and the liberated oil is absorbed to some extent by the 

 hominy, chiefly, of course, by the white starch, as indicated by 

 the high oil-content of the break flour and the other regularly 

 separated corn-flour, although it is evident that a small por- 

 tion of this liberated oil remains adhering to the fine grits. 

 The white starch contains 5-88 to 5-91 percent of protein, 

 while the horny starch (fine grits) contains 8-46 per cent, or 

 almost one-half more. 



" It will be observed that the two samples of whole corn 

 (1 able LXXXVIII) are almost identical in composition. While 

 the corn is fairly representative of much of the white corn grown 

 during the season of 1902, attention is called to the apparent 

 fact that this is not the most suitable corn for the manufacture of 

 hominy and grits. It seems evident that corn containing a 

 higher percentage of the horny starchy part would be more 

 valuable for the hominy mill. The manager of the American 

 Hominy Company's mills at Decatur has assured the writer 

 that he prefers corn which shall run high in grits (horny starch), 

 but he does not desire that the oil-content should be increased ; 

 indeed, it would be much better for milling purposes to have the 

 percentage of oil in corn reduced, because of the difficulty of pre- 

 venting the oil from being absorbed by the other products and 

 injuring their quality, the tendency being for the oil to become 

 rancid when exposed to the air. The hominy mills offer some 

 encouragement to farmers to grow corn especially suited for 

 their use." 



588. The Best Sorts of Maize for Milling. — The best sorts 

 of South African maize for milling are found among the flat 

 dent breeds, and include: — 

 White Breeds : — 



Hickory King ; 

 I o-row Hickory ; 

 Iowa Silver-mine ; l 



Horsetooth types (including Natal White Horse- 

 tooth, Mercer, Ladysmith, Hickory Horse- 

 tooth, and Salisbury White). 

 For the manufacture of samp, hominy, cerealine, etc., white 



1 Since the above was written, Dr. Juritz has issued a report on some 

 comparative analyses of Iowa Silver -mine and Hickory King mielie meal which 



