1. Department of Agro-Industrial; Food and Environmental Technology; Faculty of Applied Science; Food and Agro-Industry Research Center; King Mongkut's University of Technology North Bangkok; Bangkok 10800 Thailand
2. Division of Biochemical Technology; School of Bioresources and Technology; King Mongkut's University of Technology Thonburi; Bangkok 10150 Thailand
3. Department of Food Science and Human Nutrition; College of Agriculture and Life Sciences; Iowa State University; Ames IA 50011 USA