1. Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical SciencesPrince of Songkla University Hat Yai Thailand
2. Excellent Research laboratory, Phytomedicine and Pharmaceutical Biotechnology Excellence Center, Faculty of Pharmaceutical SciencesPrince of Songkla University Hat Yai Thailand
3. Department of Pharmacognosy, Division of Medicinal Chemical SciencesKyoto Pharmaceutical University Kyoto Japan