1. Institute of Food Sciences and Technology National Taiwan University Taipei 10617 Taiwan
2. Sabinsa Corporation East Windsor NJ 08520 USA
3. Department of Food Science Rutgers University New Brunswick NJ 08854 USA
4. Department of Medical Research China Medical University Hospital China Medical University Taichung 40402 Taiwan
5. Department of Health and Nutrition Biotechnology Asia University Taichung 41354 Taiwan