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Journal of Clinical Pathology logoLink to Journal of Clinical Pathology
. 1981 Feb;34(2):221–223. doi: 10.1136/jcp.34.2.221

Effect of adding cysteine to brain-heart infusion broth on the isolation of Bacteroides fragilis from experimental blood cultures.

D C Shanson, J Singh
PMCID: PMC1146458  PMID: 7229105

Abstract

Adding 0.05% cysteine to brain-heart infusion broth greatly improved the recovery of three strains of Bacteroides fragilis from simulated blood cultures. No bacteroides were isolated after 24 hours' incubation in brain-heart infusion broth without added cysteine, and this was therefore a poor medium for the isolation of B. fragilis. Results with brain-heart infusion broth containing 0.05% cysteine were similar to those obtained with commercially prepared Thiol and Brewer's thioglycollate media.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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