Optimization of levan biosynthesis from <i>Bacillus siamensis</i> using batch and continuous stirred-tank bioreactors: A response surface methodology approach.

Elevated initial sucrose levels resulting in residual sucrose after fermentation (20 % and 30 % (w/v)) showed a trend also seen in Z. mobilis , where high initial sucrose concentrations resulted in incomplete substrate utilization as a mechanism of osmotic tolerance [ 14 ].

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