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The influence of power dissipation and volumetric oxygen transfer coefficient k(L)a on Bacillus subtilis productivity of lipopeptides surfactin and fengycin was studied in shake flasks in view of scaling-up of this fermentation process. The experiments performed with different flask sizes, relative filling volumes, and shaking frequencies confirmed clearly(More)
Production of lipopeptides fengycin and surfactin in rotating discs bioreactor was studied. The effects of rotation velocity and the addition of agitators between the discs on volumetric oxygen transfer coefficient k L a were firstly studied in model media. Then the production of lipopeptides was also studied at different agitation conditions in the(More)
Iordan CFD modelling of two-phase stirred bioreaction systems by segregated solution of the Euler–Euler model. OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. a b s t r a c t An advanced study of a bioreactor system involving a Navier–Stokes based model has been(More)
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