This is the eleventh in a series of symposia devoted to talks by students on their biochemical engineering research. The first, third, fifth, and ninth were at Kansas State University in Manhattan; the second and fourth were at the University of Nebraska–Lincoln; the sixth was in Kansas City in conjunction with the 8lst American Institute of Chemical Engineers National Meeting; the seventh and the tenth were at Iowa State University in Ames; and the eighth was held at the University of Missouri–Columbia.

Contents
Pretreatment of Wheat Straw for Cellulose Hydrolysis, M. M. Gharpuray, Yong-Hyun Lee, and L. T. Fan, Kansas State University

Sugar Production During Autohydrolysis of Wheat Straw, Robert A. Lewis, Colorado State University

An Alkaline Copper Reagent for Use in Automated Analysis, Alfred R. Fratzke, Iowa State University

Sugars Produced During Extrusion Processing of Corn, Ruth S. Korn, Colorado State University

Characterization and Comparison of Renewable Energy Resources, Snehal A. Patel, Kansas State University

Anaerobic Digestion of Alcohol Stillage, Laureen K. Binder, Colorado State University

Estimation of Growth Yield and Maintenance Parameters, Bamidele 0. Solomon and Mehmet D. Oner, Kansas State University

Immobilization of Glucoamylase Using TiCl4 and Organic Titanates, Robert E. Lesch, Iowa State University

Solvent Toxicity in the Acetone-Butanol Fermentation, Jeanine M. Costa, Colorado State University