CONTINUOUS ETHANOL FERMENTATION USING TAPIOCA STARCH BY IMMOBILIZED YEAST CELL WITHOUT CARRIER
无载体固定化酵母细胞木薯淀粉质原料酒精连续发酵研究

A widespread interest has been noted in continuous power ethanol fermentation utilizing systems with immobilized yeast cell through self flocculating. We studied continuous ethanol fermentation by a naturally flocculent strain of Schizosaccharomyces pombe and the performance of two stage continuous ethanol fermentation system using suspended bioreactors(total effective vulume 1 5?L)has been established: the high biomass levels achieved allow efficient ehtanol conversion(72 7?g/L, average), residual glucose(3 74?g/L)and high productivity(9 7?g/L.h) for 150?g/L glucose concentration in feed(tapioca syrup)with average 90% total conversion of substrate. The system was run steadily during a month research.