[L-lactic acid fermentation by immobilized Rhizopus oryzae in a three-phase fluidized-bed].
L-lactic acid fermentation in a three-phase fluidized-bed bioreactor was studied by using immobilized Rhizopus oryzae cells with polyurethane particles as supporter. The results indicated that the immobilized cells were stable after used for 8 batches repeatedly. The rate and the yield of lactic acid fermentation with glucose as carbon source were 19.1 g h-1.L (bead)-1 and 82.5%, respectively. With the hydrolyzate of corn cob residue from xylose manufacturer by cellulase hydrolysis, the yield of lactic acid reached 71.9%.
Chen
Y
Y
Institute of Biochemical Engineering, Zhejiang University, Hangzhou 310027.
Xia
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L
Cen
P
P
D019149:Bioreactors; D002244:Carbon / Q000378:metabolism; D018914:Cells, Immobilized / Q000378:metabolism; D005285:Fermentation; D019344:Lactic Acid / Q000096:biosynthesis*; D012233:Rhizopus / Q000378:metabolism*
D019344:Lactic Acid; D002244:Carbon