[Continuous ethanol fermentation using tapioca starch by immobilized yeast cell without carrier].
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 volume 1.5 L) has been established: the high biomass levels achieved allow efficient ethanol 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.
Ma
Y
Y
East China University of Science and Technology, Shanghai 200237.
Zhou
X
X
Wu
P
P
D019149:Bioreactors; D018914:Cells, Immobilized; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005427:Flocculation; D012568:Schizosaccharomyces / Q000378:metabolism*; D013213:Starch
D000431:Ethanol; D013213:Starch