Kinetics Study of Batch Fermentation of Rhamnolipid by Pseudomonas aeruginosa SFZ-37
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Abstract:
To explore rhamnolipid production by Pseudomonas aeruginosa SFZ-37, batch fermentation was conducted in a 5-L fermentor and the fermentation process was monitored. During the batch fermentation, the pH was almost constant. At the end of batch fermentation, the dry cell weight, rhamnolipid production and residual glycerol could reach 4.41 g/L, 11.61 and 11.69 g/L, respectively. Based on the experimental data of batch fermentation, the kinetic models of cell growth, product formation and substrate consumption were established. The non-line fitting was employed to model the kinetics of fermentation by software OriginPro 8.0. The kinetic model could be used to describe the relationship of cell growth, product formation and substrate consumption during the process of batch fermentation.
