Oxoid™ Violet Red Bile Lactose Agar (VRBLA) (ISO) 500g

Efficiently isolate and enumerate coliforms in food, animal feed, and environmental samples with Oxoid™ Violet Red Bile Lactose Agar (VRBL), formulated in accordance with ISO 4832:2006 and ISO/TS 11133-2:2003 standards. This selective medium uses carefully balanced inhibitors—crystal violet, neutral red, and bile salts—to suppress non-target Gram-positive organisms, ensuring accurate coliform detection.

Key Features:

• Selective formulation targets coliforms while inhibiting Gram-positive bacteria

• Visual differentiation:

  • Rapid lactose fermenters (e.g., Escherichia, Klebsiella, Enterobacter) form red-purple colonies with halos

  • Slow or late fermenters form straw or colorless colonies with greenish halos

• Supports incubation under anaerobic conditions or at >42°C for improved selectivity

• Designed for detecting indicator organisms that signal hygiene, spoilage, or contamination levels

Applications:
Ideal for microbiological analysis in the food industry and environmental testing labs, helping assess food safety and quality by identifying coliform contamination.

Specifications:

• Form: Powder

• Type: Agar medium

• Quantity: 500 g

• Shelf Life: 5 years

• Yield: Varies depending on preparation

• Unit Size: Each

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