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  • Title: Characterization of the two-phase systems in airlift tower-loop bioreactors during the cultivation of E. coli.
    Author: Lippert J, Adler I, Meyer HD, Lübbert A, Schügerl K.
    Journal: Biotechnol Bioeng; 1983 Feb; 25(2):437-50. PubMed ID: 18548662.
    Abstract:
    During the cultivation of E. coli in an airlift tower-loop bioreactor, the following properties were measured: transverse profiles of Sauter bubble diameter, d(S); local relative gas holdup, E(G); bubble rise velocity, u(BS); local mean velocity, ū turbulence intensity, u'; macrotime scale, T(EL); dissipation time scale, tau(E); power spectrum, E(n); and energy dissipation spectrum D(n) at different distances from the aerator. The influence, distance from the aerator, absence and/or presnece of cells, and batch and/or continuous-culture operation on the behavior of the two-phase system are discussed on the basis of these properties.
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