PROCESS FOR CONTINUOUSLY FERMENTING SACCHARIDES TO PRODUCE ALCOHOL USING A FLOCCULATING MICROORGANISM

摘要

A PROCESS FOR CONTINUOUSLY FERMENTING TO PRODUCE ALCOHOL USING A FLOCCULATING MICROORGANISM There is disclosed a process for continuously fermenting saccharides to alcohol using a flocculating microorganism as an alcohol fermentation microorganism. The process comprises at least two steps; wherein in the first step, a stirring-type cell propagation tank equipped with or without a respiratory quotient-measuring apparatus, an oxygen supply apparatus, a temperature controller, and a cell separation apparatus is used; the quantity of propagation of cells and the fermentation yield of alcohol are controlled using the respiratory quotient (RQ) as an index, so that a flocculating microorganism substantially high in fermentation activity is continuously grwon, and in the second step, said flocculating microorganism is fed to a fermentation tank for continuously producing highly concentrated alcohol equipped with an oxygen supply apparatus, a temperature controller, and a cell separation apparatus.