Oxoid™ Violet Red Bile Glucose Agar (Dehydrated) is a selective medium formulated for the detection and enumeration of Enterobacteriaceae in food products. This glucose-containing medium enhances the recovery of glucose-fermenting Enterobacteriaceae, including coliforms, Salmonella, Shigella, and heat-resistant species such as Klebsiella and Citrobacter. ​

Key Features:

• Form: Dehydrated powder
• Weight: 2.5 Kg
• Application: Detection and enumeration of Enterobacteriaceae in food products
• Selective Agents: Crystal violet and bile salts inhibit Gram-positive bacteria
• Differentiation: Glucose fermentation lowers the pH, resulting in purple-pink colonies due to the neutral red indicator
• Preparation: Suspend 41.5g in 1 litre of distilled water, heat gently to dissolve completely, bring to a boil while stirring, cool to 45–50°C, and pour into sterile petri dishes. Do not autoclave.
• Yield: 13 litres of medium
• Storage: Store the dehydrated medium at 10–30°C, protected from moisture and light
• Compliance: Developed to meet ISO standards for reproducibility and accurate counts of Enterobacteriaceae

Download SDS

Oxoid™ Violet Red Bile Glucose Agar (Dehydrated) is a selective medium formulated for the detection and enumeration of Enterobacteriaceae in food products. This glucose-containing medium enhances the recovery of glucose-fermenting Enterobacteriaceae, including coliforms, Salmonella, Shigella, and heat-resistant species such as Klebsiella and Citrobacter. ​

Key Features:

• Form: Dehydrated powder
• Weight: 2.5 Kg
• Application: Detection and enumeration of Enterobacteriaceae in food products
• Selective Agents: Crystal violet and bile salts inhibit Gram-positive bacteria
• Differentiation: Glucose fermentation lowers the pH, resulting in purple-pink colonies due to the neutral red indicator
• Preparation: Suspend 41.5g in 1 litre of distilled water, heat gently to dissolve completely, bring to a boil while stirring, cool to 45–50°C, and pour into sterile petri dishes. Do not autoclave.
• Yield: 13 litres of medium
• Storage: Store the dehydrated medium at 10–30°C, protected from moisture and light
• Compliance: Developed to meet ISO standards for reproducibility and accurate counts of Enterobacteriaceae

Download SDS