95586

XLD Agar

NutriSelect^® Basic, powder, for enterobacteriaceae, pack of 500 g, suitable for microbiology

• Synonym(s): Xylose Lysine Deoxycholate Agar
• NACRES: NA.74
• UNSPSC Code: 41171606
• Manufacturer/tradename: NutriSelect^® Basic
• Form: powder
• Suitability: enterobacteriaceae, selective and differential for Klebsiella spp., selective and differential for Proteus spp., selective and differential for Salmonella spp., selective and differential for Shigella spp.
• Application(s): environmental; food and beverages; veterinary, microbiology

Properties

• sterility: non-sterile
• Quality Segment: 200
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 15 g/L , ammonium ferric citrate, 0.8 g/L , lactose, 7.5 g/L , L-lysine hydrochloride, 5 g/L , phenol red, 0.08 g/L , sodium chloride, 5 g/L , sodium deoxycholate, 2.5 g/L , sodium thiosulfate, 6.8 g/L , sucrose, 7.5 g/L , xylose, 3.5 g/L , yeast extract, 3 g/L
• packaging: pack of 500 g
• manufacturer/tradename: NutriSelect^® Basic
• technique(s): microbiological culture: suitable
• final pH: 7.4±0.2 (25 °C)
• application(s): environmental; food and beverages; veterinary, microbiology
• suitability: enterobacteriaceae, selective and differential for Klebsiella spp., selective and differential for Proteus spp., selective and differential for Salmonella spp., selective and differential for Shigella spp.

Description

General description

XLD Agar (Xylose Lysine Deoxycholate Agar) is a selective differentialmedium formulated for the isolation and differentiation of enteric pathogens,particularly Salmonella and Shigella species, from clinical,environmental, and food samples. The medium contains xylose as a fermentablecarbohydrate, lysine for decarboxylation reactions, and deoxycholate as aselective agent to inhibit Gram-positive and some non-enteric bacteria. Indicatorsin the medium detect acid production and hydrogen sulfide (H₂S) generation,allowing clear differentiation based on colony color and morphology.

Application

XLD Agar is widely used in clinical microbiology and food safety testing toselectively isolate and identify Salmonella and Shigella speciesfrom mixed bacterial populations. It enables differentiation of these pathogensfrom other enteric bacteria by their distinctive colony appearances, helping inrapid diagnosis and epidemiological studies.

Features and Benefits

NutriSelect^®Basic is a powdered culture media offering

• Qualitycontrol with growth promotion test according to industry standards
• Qualityassurance acc. to ISO 9001
• Cost-efficient powderedmedia

Preparation Note

Dissolve 56.7 g in 1 litre distilled water by heating slightly. Do NOT autoclave.

Other Notes

We offer two media types: the superior granulated GranuCult^® and the cost-efficient powdered NutriSelect^® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

Legal Information

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

This product will be discontinued in the near future; however, stock is still available. The recommended replacement product is 1.05287 - Xylose Lysine Deoxycholate agar

Safety Information

• Storage Class: 11 - Combustible Solids
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)