To utilize biomass at a high efficiency as a renewable energy source and to contribute to the mitigation of global warming by a great reduction of CO2 emission are fields of interest with urgent consequences. Especially, if economical technologies can be established to utilize residual wood biomass from ecosystems, a large amount of woody biomass such as unused trees (Nakagoshi et al. 2011), lumber scraps, and construction waste can be utilized (Taib and Nakagoshi 2010). The first step in constructing a truly sustainable society is to establish methods on how to utilize renewable biomass resources (Taib et al. 2010). In this research theme, innovative biofuel production technologies from various biomass stocks (Takur and Nakagoshi 2011), focusing on plant biomass including the inedible part of harvests (Diep et al. 2011, 2012a, b; Wicaksono et al. 2010a) with larger CO2 fixation capability, are being developed.