Acknowledgments
The authors would like to gratefully acknowledge the Research Centre for Environmental and Hazardous Substance Management, Faculty of Engineering, Khon Kaen University, Thailand and the JSPS-NRCT Asia Core Program for their financial contributions, the Research Centre of Fermentation of Value Added Agricultural Products (FerVAAP) for their facilities. Finally, special thanks to P. Seubchuir and A. Srisaen who conducted some of the experiments.