XLD (Xylose Lysine Desoxycholate) Agar – Medium for Salmonella detection in food and environmental samples according to ISO6579
- Format: 500 g
- Code: TN1196
- Technology: Culture media and ISO confirmation tests
- Application: Food/Water microbiology
- Tag/Filter: Salmonella,Shigella
XLD is a medium used for the detection and enumeration of Enterobacteria, and especially Salmonella, in the analysis of food products (according to ISO6579) and for testing contamination of non-sterile pharmaceutical products (according to Harmonized Pharmacopeia). Several differentiation reactions are revealed in this medium: the fermentation of lactose, xylose and/or saccharose increase acidity and turns phenol red to yellow; production of sulfidric acid induce formation of iron sulfide, which blackens the colonies; decarboxylation of the lysine in cadaverin induces an alkalinization of the area around LDC-positive colonies. Salmonella typically forms well-developed, red colonies, with or without a black center. SIFIN XLD is available as dehydrated powder.
- Format: 500 g
- Code: TN1196
- Technology: Culture media and ISO confirmation tests
- Application: Food/Water microbiology
- Tag/Filter: Salmonella,Shigella
