GasPak Plus versus Anaerocult A--two carbon dioxide/hydrogen systems for cultivation of anaerobes

Zentralblatt Für Bakteriologie, Mikrobiologie, Und Hygiene. Series A, Medical Microbiology, Infectious Diseases, Virology, Parasitology
W Heizmann, H Werner

Abstract

Two disposable carbon dioxide/hydrogen gas-generating systems (GasPak Plus and Anaerocult A) were compared by assessing growth of obligate anaerobic bacteria. Eighty strains representing 28 species of anaerobic bacteria commonly occurring at various body sites were seeded onto 4 brain heart chocolate agar plates using a spiral plater; and 1 plate each was subsequently incubated in 2 Anaerocult A and 2 GasPak Plus systems. Bacterial growth was expressed as colony-forming units per ml (CFU/ml), reproducibility of the seeding procedure was checked, and the potential interference of H2S-producing bacteria with operation of the carbon dioxide/hydrogen systems was investigated. The presence of H2S only inhibited bacterial growth in the case of Peptostreptococcus asaccharolyticus - an effect observed in both systems. Reproducibility of the seeding procedure using the spiral plater was within acceptable range. Differences between the systems were not apparent when comparing total CFU/ml of a given species and the systems therefore provide equally effective environments for incubation of anaerobic bacteria. In both systems, however, growth varied from one species or strain to another. In mixed infections, detection of certain species of...Continue Reading

References

Mar 1, 1972·The Journal of Applied Bacteriology·J G ColleeR Brown
Nov 1, 1980·Journal of Medical Microbiology·S Reilly

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