Specifications
| Appearance | Red/purple gel |
| Container | 90mm Plate |
| Fill Volume (ml) | 18 |
| Pack Size | 10 |
| Box/Case Size | 10x10 (100 Plates) |
| Shelf Life | 12 weeks |
| Storage Temp | 2-8oC |
Violet Red Bile Glucose Agar (VRBGA), 90mm Plate
Violet Red Bile Glucose Agar (VRBGA) 90mm plates; a selective medium for the detection and enumeration of Enterobacteriaceae organisms in foodstuffs. Applicable for multiple sectors including food, beverage and dairy testing.
VRBGA plates are available in packs of 10, available from stock with short lead times.
Description
8088
Violet Red Bile Glucose Agar (VRBGA), 90mm Plate is a ready-to-use prepared plate supplied by SGL for detection and enumeration of Enterobacteriaceae in food and environmental samples, as described in the European Pharmacopoeia (EP) 2.6.13, United States Pharmacopeia (USP) <61>, ISO 21528 and ISO 11133.
It is suitable for use in pharmaceutical microbiology; biotechnology; environmental monitoring; environmental testing.
Yeast extract supplies essential vitamins, while gelatin provides carbon and nitrogen to support microbial growth. Glucose acts as the fermentable carbohydrate, and sodium chloride maintains osmotic balance. Bile salts and crystal violet provide selectivity by inhibiting many Gram-positive bacteria. Enterobacteriaceae, including Escherichia coli and Salmonella spp., ferment glucose and produce acid. The resulting fall in pH causes the neutral red indicator to form pink colonies. Strong acid production may also precipitate the bile salts, creating a visible halo around glucose-fermenting colonies. Bile-tolerant organisms that do not ferment glucose, such as Pseudomonas aeruginosa, may grow but typically produce colourless colonies without bile precipitation.
SKU: 8088
