1. Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
2. Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
3. Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
4. Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand