Selectively enrich Salmonella spp. from food, animal feces, and environmental samples with Thermo Scientific™ Oxoid™ Modified Semi-solid Rappaport Vassiliadis (MRSV) Agar (ISO) (Dehydrated). The efficacy of the medium is based upon the ability of salmonellae to migrate through the selective medium ahead of competing Gram-negative, motile organisms and, thus, produce opaque halos of growth.
Utilize motility enrichment on Modified Semi-solid Rappaport Vassiliadis Agar (ISO) for the isolation of Salmonella species from food and environmental samples associated with the primary stage of animal production (such as dust).
Simple and sensitive method for the isolation of salmonellae from food and environmental samples.
Incorporated into ISO 6579:2002+A1:2007 Annex D1, for the isolation of salmonellae from animal feces (such as poultry, pigs, and cattle).
Gram-positive flora is inhibited by novobiocin, low pH, high magnesium chloride concentration, and malachite green.
Isolation is based on the ability of salmonellae to migrate through the selective medium ahead of competing Gram-negative, motile organisms, thus producing opaque halos of growth.
Presumptive identification is achieved by subculture onto XLD Agar and a second Salmonella agar of choice.
Modified Semi-solid Rappaport Vassiliadis Agar (ISO) is based on the formulation described by De Smedt et al., which has been shown to detect more Salmonella positive samples than traditional enrichment procedures. 2
Not all products are available for sale in all territories. Please inquire. Remel™ and Oxoid™ products are now part of the Thermo Scientific™ brand.
1. ISO 6579:2002 +A1:2007 Annex D. 2. De Smedt J. M., Bolderdijk R., Rappold H. and Lautenschlaeger D. (1986) J. Food. Prot. 49. 510-514.