Remel™ Bismuth Sulfite Agar

Isolate and differentiate Salmonella species from clinical specimens and other materials using Thermo Scientific™ Remel™ Bismuth Sulfite Agar (Dehydrated). In 1927, Wilson and Blair introduced Bismuth Sulfite Agar that selectively isolated typhoid and paratyphoid groups of bacteria from stool specimens¹. This medium has been recommended by the United States Pharmacopeia (USP) for the use in microbial limit testing², the Food and Drug Administration (FDA) and American Public Health Association (APHA) for isolation of Salmonella and other pathogens from foods and dairy products^3-6.

The medium contains beef extract and meat peptone which supply amino acids, peptides, carbohydrates, vitamins, and nitrogenous compounds required for the growth of microorganisms. Dextrose provides a ready source of energy. Ferrous sulphate is an indicator of hydrogen sulfide production. Bismuth is a heavy metal that has inhibitory properties for certain microorganisms. Salmonella species produce hydrogen sulfide which reacts with ferrous sulfate and forms a metallic precipitate (black or green coloration).

• Selective media - Brilliant green dye is a selective agent
• Easy-to-read: The characteristic black and green coloration of Salmonella species comes from a metallic precipitate that forms when hydrogen sulphide, produced by Salmonella species from sulphur compounds in the medium, reacts with ferrous sulfate.
• Recommended by the United States Pharmacopeia (USP) for the use in microbial limit testing², the Food and Drug Administration (FDA) and American Public Health Association (APHA) for isolation of Salmonella and other pathogens from foods and dairy products^3-6.