1. Biotechnology Program, Graduate School, Chiang Mai University; Chiang Mai Thailand
2. Faculty of Agriculture, Department of Applied Biological Science; Kagawa University; Kagawa Japan
3. Faculty of Agro-Industry, Division of Biotechnology; School of Agro-Industry, Chiang Mai University; Chiang Mai Thailand
4. Faculty of Science, Department of Biology; Chiang Mai University; Chiang Mai Thailand