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J Clin Microbiol. 1991 December; 29(12): 2835-2837

Evaluation of liquid media for growth of Helicobacter pylori.

Department of Microbiology, University of Maryland, College Park 20742.

ABSTRACT

Helicobacter pylori has routinely been isolated and grown on solid media. Recently, we have succeeded in obtaining growth of this organism in several liquid media in large volumes, including tryptic soy broth, Mueller-Hinton broth, brucella broth, brain heart infusion broth, and Columbia broth. Growth was tested in the media with and without supplementation. Growth was obtained after incubation under microaerobic conditions and with CO2 enrichment. Growth in a stationary system versus that in an agitated system was evaluated. Results from these experiments show that H. pylori can be grown in any of the liquid media tested except buffered yeast extract-alpha-ketoglutarate if serum is added. No growth was observed on buffered yeast extract-alpha-ketoglutarate even with serum and other supplementation. Growth of H. pylori in most of the liquid media with supplements was improved if the culture was incubated in a CO2 atmosphere. The findings reported here may be useful in clinical, industrial, and research laboratories that require harvests of large quantities of H. pylori cells.

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