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Enhancement of l(+)-lactic acid production using acid-adapted precultures of Rhizopus arrhizus in a bubble column reactor |
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| Authors: | Zhan Ying Zhang Bo Jin Joan M. Kelly |
| Affiliation: | 1School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;2School of Earth and Environmental Sciences, The University of Adelaide, Adelaide, SA 5005, Australia;3Australian Water Quality Centre, Bolivar, SA 5095, Australia;4School of Molecular and Biomedical Science, The University of Adelaide, SA 5005, Australia |
| Abstract: | 88 g/L lactic acid was produced from waste potato starch (equivalent to 100 g/L glucose) in a bubble column reactor using appropriate acid-adapted precultures of Rhizopus arrhizus. Further experiment showed that repeated dilution of cultures caused the decrease of lactic acid concentration and productivity due to formation of large fungal pellets. |
| Keywords: | Lactic acid Rhizopus arrhizus Morphology Pellet Acid-adapted precultures Bubble column reactor |
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