1. Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506.
2. Current address: C. W. Brabender Instruments, Inc., 50 East Wesley Street, South Hackensack, NJ 07606.
3. Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506.
4. United States Department of Agriculture (USDA), Agricultural Research Service, Grain and Animal Health Research Center, Manhattan, KS 66502. Names are necessary to report factually on available data; however, USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be used.
5. Corresponding author. Phone: (785) 532-2919. Fax: (785) 532-5825. E-mail: dwang@ksu.edu