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Description
Oxoid™ Violet Red Bile Agar (VRBA) (5kg) is a selective medium specifically formulated for the detection and enumeration of coliform organisms in food, dairy, and water samples. Its composition selectively encourages the growth of Gram-negative, lactose-fermenting coliforms while inhibiting the growth of Gram-positive bacteria.
Key Features:
- Form: Dehydrated powder
- Weight: 5kg
- Application: Detection and enumeration of coliform bacteria in food, dairy, and water microbiological testing
- Composition: Includes bile salts and crystal violet to suppress Gram-positive flora; lactose and neutral red serve as indicators for lactose fermentation
- Preparation: Suspend 41.5g in 1 liter of distilled water, mix thoroughly, and heat to boiling to dissolve completely. Do not autoclave. Cool to 45–50°C before pouring.
- Yield: Approximately 120.5 liters of prepared medium
- Storage: Store the dehydrated medium at 10–30°C, protected from moisture and light
- Compliance: Suitable for use in standardized testing protocols for coliform detection in food safety and water quality monitoring.
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