Sunita Chamyuang1,2, Amorn Owatworakit1,2, Yoichi Honda3. 1. School of Science, Mae Fah Luang University, Chaing Rai, Thailand. 2. Microbial Products and Innovation Research Unit, Mae Fah Luang University, Chaing Rai, Thailand. 3. Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan.