1. Department of Food Science and Nutrition, 1334 Eckles Avenue, University of Minnesota, St. Paul, MN 55108.
2. Corresponding author. Phone: 612/624-0746. Fax: 612/625-5272. E-mail: dgallaher@che2.che.umn.edu
3. General Mills, #1 General Mills Blvd., Minneapolis, MN 55426.