Thermo Fisher, CM1149B, Pre-supplemented Dichloran Rose-bengal Chloramphenicol (DRBC) (ISO) Agar (Dehydrated)

Name: Pre-supplemented Dichloran Rose-bengal Chloramphenicol (DRBC) (ISO) Agar (Dehydrated)
Brand: Thermo Fisher
SKU: CM1149B

Quantity: 500 g, Unit Size: Each, Isolate and enumerate yeasts and molds associated with food spoilage with Thermo Scientific™ Oxoid™ Pre-supplemented Dichloran Rose-Bengal Chloramphenicol (DRBC) (ISO) Agar Base (Dehydrated) while adhering to ISO 21527-1: 2008. Due to the presence of antibiotic Chloramphenicol in the formulation, the medium provides selectivity against bacteria as well as reducing harmful chemical handling in the laboratory.

Catalog Number: CM1149B

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Category

Selective & Differential Media

Pack Size500 g

TagsMicrobiological Media and Media Additives Dehydrated Microbiology Media

CollectionsThermo Fisher Microbiological Media & Media Additives Thermo Fisher Clinical Analyzers & Instruments for Diagnostic Labs Thermo Fisher General Lab Supplies for Daily Workflows — Nalgene, Nunc, Samco & Matrix

Description

Quantity: 500 g
Unit Size: Each
Use Pre-supplemented 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 mold samples in food samples. DRBC (ISO) is a modification of the original Rose-Bengal Chloramphenicol Medium^1 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. Pre-supplemented DRBC (ISO) Agar contains 0.1g per litre chloramphenicol in the agar base. This removes the need for supplementation and handling of the chloramphenicol. Not all products are available for sale in all territories. Please inquire. Remel™ and Oxoid™ products are now part of the Thermo Scientific™ brand.

Specifications

General

Description	Pre-supplemented Dichloran Rose-bengal Chloramphenicol (DRBC) (ISO) Agar (Dehydrated)
Quantity	500 g
Shelf Life	5 Years
Form	Powder
Product Type	Agar
Unit Size	Each

FAQs

Question: What quantity is supplied?

Answer:The package contains 500 g of dehydrated DRBC agar.

Question: What organisms is the medium intended to recover?

Answer:It is used for isolation and enumeration of yeasts and molds associated with food spoilage.

Question: What is the role of dichloran?

Answer:Dichloran restricts spreading colony growth, making colonies easier to enumerate.

Application Note

Pre-supplemented Dichloran Rose-Bengal Chloramphenicol (DRBC) Agar is a selective dehydrated medium for isolation and enumeration of yeasts and molds associated with food spoilage. This configuration contains 500 g of powder. Dichloran restricts spreading mold growth so individual colonies are easier to enumerate, while rose bengal and the acidic formulation support selective fungal recovery. Chloramphenicol is already incorporated at the required level to suppress bacterial growth without a separate supplementation step. The medium is aligned with ISO 21527-1:2008 workflows for food products with water activity above 0.95. The pre-supplemented formulation simplifies preparation and reduces handling of the antibiotic component in routine food-microbiology laboratories.

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