Bacterial isolation method and device

Details Bacterial isolation method and device Bacterial isolation method and device

1976-04-02

1977-10-11

Jones, Raymond N.

Textiles: fiber preparation

195139, C12K 104, C12K 110

Patent

active

040533620

ABSTRACT:
The present improved bacterial isolation device comprises a bacterial test container with closed bottom, raised sides and open top. A honeycomb type isolation grid providing a plurality of isolated cells is embedded in a layer of non-nutritive medium covering the bottom of the container, so that swarming types of bacteria cannot pass from one isolated cell to another and thus grow over bacteria to other isolated cells and mask them from detection.
The improved method and device involve the disposition of a non-nutritive layer in the bottom of the container, covered with a separate layer of selected nutritive medium substantially unmixed therewith and introducing bacteria to the nutritive layer and embedding the isolation grid in the non-nutritive layer, covering the container and incubating the bacteria therein until they can be detected in the isolated grid cells. The method is simple, rapid, can be carried out with readily available, low-cost materials and eliminates both the requirements for a repeat test and for the use of bactericidal or bacteriostatic agents and the like in the nutritive medium to selectively suppress swarming bacteria.

REFERENCES:
patent: 3715280 (1973-02-01), Farmer

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