流動方向変換クロスフローろ過法を用いた高密度培養法におけるエタノール生産

概要

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The productivity of ethanol fermentation by cell recycle cultures of Bakers yeast was investigated using a bioreactor with a filtration module. The flow direction of the culture broth circulationg along a flat membrane in the filtration module was changed periodically, at intervals of 4 minutes and 1 minute, as a result of which the filtration flux increased five-fold over that of the control experiment. When the cell concentration in the rector was main-tained at 200 g-dry cell l^<-1> by bleeding the culture, the filtration flux was stablized further and increaded twenty-fold over that of the control experiment. The productivity and exit concentration of ethanol in this cell recycle culture at the cell concentration of 200gl^<-1> were 83.7gl^<-1>h^<-1> and 30.2gl^<-1> respectively.
社団法人日本生物工学会の論文
1991-07-25