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[Directed autoselection of bacteria during turbidostat cultivation].

A method has been proposed for directed bacteria autoselection, based on their sensitivity to growth inhibitors during continuous unlimited cultivation. A smooth increase of a growth inhibitor concentration in the medium has been used in response to the appearance and autoselection of more resistant strains. The aim can be reached by continuous measurements of the specific microbial growth rate during the process and its keeping at the required level by the inhibitor additions. The experimental data are given showing application of the method for Escherichia coli and Pseudomonas sp. turbidostat cultivation with valine, low pH and formaldehyde as inhibitors.