Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 1992 Nov;30(11):3028-9.
doi: 10.1128/jcm.30.11.3028-3029.1992.

Detection of diacetyl (caramel odor) in presumptive identification of the "Streptococcus milleri" group

T A Chew  1 , J M Smith
Affiliations
Comparative Study

Detection of diacetyl (caramel odor) in presumptive identification of the "Streptococcus milleri" group

T A Chew et al. J Clin Microbiol. 1992 Nov.

Abstract

The caramel odor associated with the "Streptococcus milleri" group was shown to be attributable to the formation of the metabolite diacetyl. Levels of diacetyl in the 22- to 200-mg/liter range were produced by 68 strains of the "S. milleri" group; apart from one strain of Streptococcus mutans, all 92 other strains of streptococci belonging to 12 species produced < 13 mg of diacetyl per liter. Quantitation of diacetyl levels from cultures of streptococci is suggested as a rapid presumptive test for the "S. milleri" group.

PubMed Disclaimer

References

    1. J Clin Microbiol. 1990 Jul;28(7):1497-501 - PubMed
    1. Clin Microbiol Rev. 1988 Jan;1(1):102-8 - PubMed
    1. Int J Syst Bacteriol. 1991 Jan;41(1):1-5 - PubMed

Publication types

LinkOut - more resources