1. Bureau of Technical Support for Safety Regulation; Office of Atoms for Peace; 16 Vibhavadi-Rangsit Road, Chatuchak, Bangkok 10900 Thailand
2. Department of Nutrition; Faculty of Public Health, Mahidol University; Rachathewi, Bangkok 10400 Thailand
3. Division of Biochemical Technology, School of Bioresources and Technology; King Mongkut's University of Technology Thonburi (Bangkhuntien); Bangkok 10150 Thailand