1. Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
2. Mahidol University-Osaka University Collaborative Research Center for Bioscience and Biotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
3. Department of Clinical Microbiology, Faculty of Medical Technology, Mahidol University, Bangkok 10400, Thailand
4. Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand