1. Department of Ecological Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan, Department of Chemical Engineering, Syiah Kuala University, NAD 23111, Indonesia, Institute of Industrial Science, University of Tokyo, Yayoi- cho, Chiba 263-0022, Japan, and Research Institute for Solvothermal Technology, 2217-43 Hayashi, Takamatsu, Kagawa 761-0301, Japan