| abstract |
[PROBLEMS] To reexamine the ethanol production system based on the conventional method (liquid fermentation method), which is difficult to treat and dispose of distilling liquid waste, in order to make effective use of surplus rice. It aims at providing the technique which makes it possible to suppress as much as possible. A saccharification step in which raw rice is saccharified to prepare a saccharified solution, and the water content at the start of fermentation of the fermentation mash composed of the saccharified solution, yeast and water is adjusted to 50 to 60% by weight. It solves by the processing method of the rice which has the solid fermentation process which performs solid fermentation, and the distillation process which distills the obtained ethanol. [Selection] Figure 1 |