. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Contribution from the Bureau of Chemistry ^C^"^^ CARL L. ALSBERG, Chief. Washington, D. C. PROFESSIONAL PAPER April 4, 1918 A PHYSICAL AND CHEMICAL STUDY OF THE KAFIR KERNEL. By George L. Bidwell, Chemist in Charge, Cattle Food and Grain Investigation Laboratory. The grains of nonsacckarine sorghums are becoming very impor- tant commercially. Although heretofore largely limited in their use to feeding farm animals, they are now being employed in increas- ing amounts for human food, a matter which has been studied
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Contribution from the Bureau of Chemistry ^C^"^^ CARL L. ALSBERG, Chief. Washington, D. C. PROFESSIONAL PAPER April 4, 1918 A PHYSICAL AND CHEMICAL STUDY OF THE KAFIR KERNEL. By George L. Bidwell, Chemist in Charge, Cattle Food and Grain Investigation Laboratory. The grains of nonsacckarine sorghums are becoming very impor- tant commercially. Although heretofore largely limited in their use to feeding farm animals, they are now being employed in increas- ing amounts for human food, a matter which has been studied by the Office of Home Economics of the Department of Fur- thermore, the attention of manufacturers of alcohol and starch is being turned to these grains. As a basis for a process which would utilize nonsaccharine sorghums, probably one of the cheapest sources of starch, in the manufacture of starch and feedstuffs, a study was made in the Bureau of Chemistry of the physical characteristics and chemical composition of the kafir kernel, and the various parts into which it might be separated by milling. Kafir was selected because it is typical of this class of grains, and economically as important as any of them. Therefore a sample of Dawn kafir (Dwarf Blackhull), C. I. 340, was obtained from the Bureau of Plant Industry for this purpose. This sample was grown at the Cereal Field Station, Amarillo, Tex., in 1915, and is the same grain as that used in the food The kafir kernel shows some interesting physical characteristics. It is obovoid, or broadly ellipsoid, convex on the outer or dorsal surface, and somewhat flattened on the inner or ventral surface. It might be considered as developed from a sphere by first rolling it in such a way as to lengthen one diameter slightly, then flattening it on one side. The tip is more or less pointed. Beneath the tip is the hilum, or point of attachment of the seed. The outer end usually is rounded, but often bears a t
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