1. Department of Pharmacognosy, Faculty of PharmacyMahidol University Bangkok Thailand
2. Faculty of Pharmaceutical SciencesKhon Kaen University Khon Kaen Thailand
3. Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical BiotechnologyNational Research University‐Khon Kaen University Khon Kaen Thailand
4. Graduate School of Pharmaceutical SciencesKyushu University Fukuoka Japan