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J Bacteriol. 1988 June; 170(6): 2827-2831

research-article

Effects of end-product inhibition of Cellulomonas uda anaerobic growth on cellobiose chemostat culture.

Laboratoire de Chimie Bactérienne, Centre National de la Recherche Scientifique, Marseille, France.

ABSTRACT

Cellulomonas uda was grown anaerobically in a chemostat with 3.33 and 11.41 mM cellobiose in the feed medium at dilution rates varying from 0.017 to 0.29/h. Unusual results obtained were analyzed by using curves simulating the steady-state biomass. This unusual behavior could be accounted for by a classical growth model taking end-product inhibition into account. Acetate has been identified to be the major inhibitor in the experimental conditions used. Parameters calculated from experimental observations gave theoretical curves of biomass production versus dilution rate which fitted the experimental points very well.