| 摘要 |
PURPOSE:To improve the yield of an alcohol from a raw material saccharide, by arranging two fermenting devices having a means to separate a carrier from a fermented solution in series, cultivating a bacterium capable of fermenting an alcohol attached to a carrier by the former fermenting device and a flocculating yeast by the latter. CONSTITUTION:For example, a solution of waste molasses diluted by five times is fed through the pump 47 to the fermenting device 41, and sent from the branched part 45b with a small diameter of the solid-liquid separating member 45 of the device through the pump 48 to the fermenting device 42. A bacterium capable of fermenting an alcohol, attached to a carrier, is cultivated in the fermenting device 41, and a flocculating yeast in the fermenting device 42. The solution of waste molasses is subjected to alcohol fermentation by the two in high yield. The fermented solution having finished fermentation is taken out from the branched part 46b with a small diameter of the solid-liquid separating member 46 of the fermenting device 42. The bacterium in the fermenting device 41 and the yeast in the fermenting device 42 are separated from the solid-liquid separating members 45 and 46 respectively, and reused. |
