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author:("Shi, wenchuan")
2.  Cariogenic Actinomyces Identified with a β-Glucosidase-Dependent Green Color Reaction to Gardenia jasminoides Extract 
Journal of Clinical Microbiology  2001;39(8):3009-3012.
The oral bacteria Actinomyces naeslundii and Actinomyces viscosus are known to contribute to the initiation and progression of human dental caries, especially root caries. We report that both A. naeslundii and A. viscosus react with a component in the Gardenia jasminoides extract to produce a distinct green product. This green color reaction was found to be dependent on the bacterial β-glucosidase. The reaction is specific for cariogenic actinomyces, and it can detect as few as 104 cells of A. naeslundii and A. viscosus per ml.
doi:10.1128/JCM.39.8.3009-3012.2001
PMCID: PMC88283  PMID: 11474036

Results 1-2 (2)