1. Department of Food Science and Human Nutrition, 5735 Hitchner Hall, University of Maine, Orono, Maine 04469-5735
2. U.S. Department of Agriculture, 1109 Experiment Street, Griffin, Georgia 30223
3. U.S. Department of Agriculture, 911 East Highway, 3 Lane, Oklahoma 74555-0159
4. Department of Chemistry, University of Georgia, Athens, Georgia 30602