1. College of Food Science & Technology, Agricultural University of Hebei, 071001, Baoding, China
2. Tropical Plant Resources Institute, Inc., Okinawa, Japan
3. Henan University of Technology, Zhengzhou, China
4. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China
5. Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan