A study of acetic acid production by immobilized Acetobacter Cells: Oxygen transfer.
The immobilization of living Acetobacter cells by adsorption onto a large-surface-area ceramic support was studied in a pulsed flow reactor. The high oxygen transfer capability of the reactor enabled acetic acid production rates up to 10.4 g L(-1) h(-1) to be achieved. Using a simple mathematical model incorporating both internal and external mass transfer coefficients, it was shown that oxygen transfer in the microbial film controls the reactor productivity.
Départment de Génie Biochimique (ERA‐CNRS n° 879), Institut National des Sciences Appliquées. Avenue de Rangueil, F 31077 Toulouse Cedex, France.
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Ghommidh
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Navarro
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Durand