1. Faculty of Biology, College of Education, Vinh University, 182 Le Duan, Vinh City, Nghean, Vietnam
2. Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85 Tran Quoc Toan Road, District 3, Hochiminh City, Vietnam
3. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
4. Research Center of Ginseng and Medicinal Materials, National Institute of Medicinal Materials, Dakao, Hochiminh, Vietnam
5. Faculty of Agriculture, Forestry and Fishery, Nghe An University of Economics, 51 Ly Tu Trong, Vinh City, Nghean, Vietnam
6. Faculty of Chemistry, University of Education, Hue University, 34 Le Loi, Hue City, Vietnam
7. Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
8. Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
9. Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
10. Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam