1. Advanced Foods Branch, Sustainability Directorate, U.S. Army Natick RD&E Center SSCOM, Natick MA 01760-5018. Corresponding author. Phone: 508/233-4516. Fax: 508/233-5274. E-mail: abarrett@natick-enh2.army.mil
2. Department of Food, Agricultural and Biological Engineering, The Ohio State University, Columbus OH 43210-1057.