Date of Graduation


Document Type



The present work was conducted to determine the influence of methods of preparation of corncob acid-resistant hemicellulose on its chemical composition and rat growth stimulation. ARH preparations involved either treatment with cation resin, solubilization of crude ARH and reprecipitation in ethanol, treatment of the hydrolysate with carbon or recovery of the non-dialyzable portion of corncob hydrolysate. All ARH preparations significantly improved growth and feed utilization of rats when fed at the 0.05% level of the diet. The reduction of the phenolic content of the ARH preparation did not influence rat growth. The carbohydrate components of the ARH preparation were similar to carbohydrate components of hemicellulose reported by other workers.