Nutritive Value of Protein in High and Low Protein Content Sorghum Grain as Measured by Rat Performance and Amino Acid Assays

Autor: Charles W. Deyoe, Doyle H. Waggle, D. B. Parrish
Rok vydání: 1966
Předmět:
Zdroj: The Journal of Nutrition. 88:370-374
ISSN: 0022-3166
Popis: The nutritive value of protein of 2 sorghum grain composites containing 7.9% and 11.8% protein, respectively, was compared on the basis of growth of rats and amino acid analyses. The high protein sorghum grain had higher percentages of all the 17 amino acids studied than did the low protein sorghum grain. In both grains, lysine was the most deficient amino acid, and content of sulfur-containing amino acids and threonine also was low. Calculated on an equal nitrogen basis, the dibasic amino acids, especially lysine, the sulfur-containing amino acids, and threonine levels of the high protein sorghum grain were lower than those of the low protein sorghum grain. Nutritive value of the protein of low protein sorghum grain was superior to that of a high protein sorghum grain, as shown both by growth of rats and amino acid assays. When lysine, histidine, and arginine were added to the high protein sorghum grain diet to adjust percentages of those amino acids in the protein similar to the content in the low protein sorghum grain diet, an increase in growth resulted
Databáze: OpenAIRE