Affiliation:
1. Department of Microbiology, The University of Michigan, Ann Arbor, Michigan
Abstract
Gerhardt, Philipp
(The University of Michigan, Ann Arbor),
and D. M. Gallup
. Dialysis flask for concentrated culture of microorganisms. J. Bacteriol
86:
919–929. 1963.—A twin-chambered dialysis flask was designed with a supported membrane clamped between a reservoir of medium in the bottom and a small volume of culture above, the unit being mounted on a shaking machine to provide aeration and agitation. The performance of different dialysis membranes and membrane filters was compared in glucose-diffusion and bacterial-culture tests. Some of the variables in dialysis culture were assessed and the growth response was characterized, with
Serratia marcescens
as the test organism. The general usefulness and concentrating effect of dialysis culture were demonstrated in trials with 16 representative types of microorganisms. Dialysis culture was shown to be especially suitable for producing dense populations of cells or their macromolecular products in an environment free from complex medium constituents, for removing toxic products that limit growth or fermentation, and for supplying oxygen by diffusion without the damage from usual aeration procedures.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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