Thermo Scientific™

Dichloran Rose-Bengal Chloramphenicol (DRBC) (ISO) Agar Base (Dehydrated)

Isolate and enumerate yeasts and molds associated with food spoilage with Thermo Scientific™ Oxoid™ Dichloran Rose-Bengal Chloramphenicol (DRBC) (ISO) Agar Base while adhering to ISO 21527-1: 2008. Dichloran Rose-Bengal Chloramphenicol (DRBC) (ISO) Agar is specially designed to suppress the growth of spreading mold and bacteria while supporting the growth of species that cannot be isolated on Rose Bengal Chloramphenicol Agar or Acidified Potato Dextrose Agar.
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Use Dichloran Rose-Bengal Chloramphenicol (DRBC) Agar Base for selective isolation and enumeration of viable yeast and molds in food products with a water activity above 0.95 aW.
  • Adheres to ISO 21527-1: 2008 standards.
  • Selective for viable yeast and moulds in food samples.
DRBC (ISO) is a modification of the original Rose-Bengal Chloramphenicol Medium1 and differs as the Rose-Bengal content has been optimized by adding Dichloran and by changing the pH to 5.6.

The inclusion of chloramphenicol in this medium suppresses bacterial growth, allowing molds, and yeasts to grow. The inhibition of spreading molds and the restriction of their colony size results in improved enumeration and detection. The reduced pH of DRBC (ISO) Agar increases the inhibition of yeasts by the rose-bengal.

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1. Pitt J. I. (1984) Personal Communication.