1. U.S. Department of Agriculture, Agricultural Research Service, SEA, Food Science Research UnitNC State University 322 Schaub Hall, Box 7624 Raleigh NC 27695 U.S.A.
2. Department of Food, Bioprocessing and Nutrition SciencesNC State University 400 Dan Allen Drive Raleigh NC 27695 U.S.A.
3. Department of StatisticsNC State University 2311 Stinson Drive, 5109 SAS Hall, Campus Box 8203 Raleigh NC 27695 U.S.A.
4. Department of Computer Science, College of EngineeringNC State University 890 Oval Drive, Campus Box 8206 Raleigh NC 27695 U.S.A.