FOOD OF MAN- STUDIES. 



531 



The; Digestibility of Hulled Corn. 

 By treating corn with an alkali the hull or indigestible outer 

 coating of the kernel may be so loosened that it can be easily 

 removed. If the alkali is then thoroughly removed by washing 

 and the product steamed, the result is the so-called "hulled 

 corn," a very acceptable food with many. So far as the writer 

 is aware, there are no published results which cast any light 

 upon the digestibility of this article of diet. Sixteen experi- 

 ments have been made at this Station in eight of which hulled 

 corn and milk formed the sole articles of diet (simple diet). In 

 eight other experiments the same foods were used with the addi- 

 tion of bread, butter, meat, and canned peaches (mixed diet). 

 The details were much the same as those observed in earlier and 

 later work in these laboratories, and need not be repeated here. 

 The composition of the hulled corn as purchased and in the 

 water-free condition is shown in the following table. 



COMPOSITION OF HULLED 



CORN USED IN 



DIGESTION EXPERIMENTS. 



d 



Xt 





CD 

 03 



a 



M 







.~<N 



2 k 



.3 J 



g-i 



m 



A 



a 



**? CO 



a 



3 





£ 



g 



Mz; 



32 



5S 



£* 



< 



ffi 





Fresh 



% 



% 



% 



% 



'% 



% 



% Calories 

 per 



5171 





79.67 



.32 



2.02 



1.08 



.31 



15.30 



gram. 

 1.62 .903 



5172 





79.73 



.29 



1.81 



1.01 



.14 



15.66 



1.65 .844 



5178 



Water-free 



81.32 



.30 



1.88 



1.05 



.15 



14.17 



1.43| .864 



5171 





- 



1.59 



9.96 



5.30 



1.51 



75.26 



7.97 1 4.440 



5172 





- 



1.43 



8.92 



5.00 



.69 



77.27 



8.I2I 4.164 



5178 





- 



1.61 



10.05 



5.65 



.78 



75.89 



7.63 4.625 



The experiments were carried out in the order indicated in 

 the table which follows. For each period of four experiments 



