1. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Engineering Research Center for Tropical Medicinal Plants, Danzhou, People’s Republic of China
2. College of Forestry, Hainan University, Haikou, People’s Republic of China
3. Department of Biology and Chemistry Engineering, Weihai Vocational College, Weihai, People’s Republic of China
4. Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, People’s Republic of China