49 

 Old Process. 



1910. 1911. 1912. 1913. 



No. Samples, 17 8 18 31 



Protein (per cent), 35.96 37.11 35.61 34.56 



Fat (per cent), 6.10 5.76 6.72 6.74 



Fiber (per cent), — 7.15 7.45 7.76 



Price a ton, $40.65 $40.50 $43.29 $40.03 



Gluten meal, a by-product from the manu- 



Gluten Meal. facture of starch from corn, is again in the 



Page 9. market after a lapse of several years. On 



the basis of its composition and digestibility, 



it has 10 per cent greater feeding value than cottonseed meal. 



It should not be confused with gluten feed, which has noticeably 



less protein. 



Average Analysis and Retail Price. 



1913. 



No. Samples, 9 



Protein (per cent), 41.88 



Fat (per cent), 3.18 



Fiber (percent), 2.31 



Price a ton, $36.00 



Gluten feed is a mixture consisting largely 



Gluten Feed. of gluten meal, corn bran, broken corn 



Pages 9-10. germs and other residual material derived 



from Indian corn in the manufacture of 

 cornstarch. It varies much in color and acidity, depending upon 

 the method of manufacture, condition of the seed from which 

 it is derived, the use of added coloring matter and the addition 

 or omission of the condensed "steep water." The last mentioned 

 is a very dilute solution of sulfurous acid in which the corn is 

 soaked preparatory to separating the starch. This steep water 

 dissolves out considerable of the proteids and phosphates. For- 

 merly this material was allowed to run to waste, but in many 

 factories it is now condensed, the acid neutralized, and the residue 

 added to the gluten feed. The addition of this residue increases 

 the ash and protein content of the feed but does not improve its 

 physical appearance. 



At a meeting of the Association of Feed Control Officials, held 

 in 1913, it was voted not to recognize the terms "gluten feed" 

 and "gluten meal" but in their place to substitute "cornstarch 

 by-product with corn bran" for gluten feed, and "cornstarch by- 



