1. School of Food Science; Univ. of Idaho; Moscow ID 83844 U.S.A
2. USDA-ARS Center for Grain and Animal Health Research; Manhattan KS 66502 U.S.A
3. USDA-ARS Natl. Center for Agriculture Utilization Center; Peoria IL 61604 U.S.A
4. Food Science Inst.; Kansas State Univ.; Manhattan KS 66506 U.S.A