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Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia

Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia

Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia Specification

  • Molecular Formula
  • C6H14N2O2
  • Physical State
  • Powder/Solid
  • Usage
  • Laboratory
  • Shelf Life
  • 36 Months
  • Size
  • 500 g
  • Molecular Weight
  • 146.19 g/mol
  • Packaging Type
  • Plastic Bottle
  • Grade
  • AR (Analytical)
  • Type
  • Microbiological Media
  • Application
  • Laboratory
  • Appearance
  • Red coloured medium
  • Pack Size
  • 500 g
  • Deoxycholate Content
  • Present
  • Typical Use
  • Salmonella and Shigella detection
  • Selective Medium
  • Yes
  • Lysine Decarboxylation
  • Detectable
  • Storage
  • Cool, dry place
  • Xylose Fermentation
  • Detectable
  • Coliform Detection
  • Suitable
 

Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia Trade Information

  • Minimum Order Quantity
  • 25 Bottles
  • Supply Ability
  • 100 Bottles Per Month
  • Delivery Time
  • 7 Days
 

About Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia

Xylose Lysine Deoxycholate Agar (XLD Agar) is a selective and differential medium used for isolating and identifying Salmonella and Shigella bacteria, particularly from clinical samples and food. It's characterized by its pink color, a free-flowing, homogeneous powder. XLD Agar relies on sodium deoxycholate as a selective agent to inhibit Gram-positive microorganisms, and a combination of xylose, lysine, and other components for differential growth and identification of specific bacteria. Here's a more detailed breakdown:Selective Features:
  • Sodium Deoxycholate: This component inhibits the growth of most Gram-positive bacteria, ensuring that only Gram-negative enteric bacteria like Salmonella and Shigella can thrive. 
Differential Features:
  • Xylose:Salmonella and Shigella utilize xylose, a sugar, as a carbon source, leading to the production of acid, which changes the pH indicator (phenol red) from red to yellow, allowing for differentiation. 
  • Lysine:Lysine is used as a carbon and nitrogen source. After xylose is exhausted, Salmonella will decarboxylate lysine, producing an alkaline pH, which mimics the Shigella reaction and can help distinguish them. 
  • Hydrogen Sulfide Production:Some Salmonella species can produce hydrogen sulfide (H2S) from the thiosulfate in the medium, resulting in black colonies, a characteristic feature for differentiation. 
  • Lactose, Sucrose, and Phenol Red:These components, along with lysine and xylose, are part of the differential system, allowing for the identification of bacteria based on their fermentation patterns and hydrogen sulfide production. 
Colony Appearance:
  • Salmonella: Red to pink colonies, some with black centers due to hydrogen sulfide production.
  • Shigella: Red colonies, as they do not ferment xylose or produce hydrogen sulfide.
  • Coliform Bacteria (e.g., E. coli): Yellow or orange colonies. 
Uses:
  • Isolation of Salmonella and Shigella:XLD Agar is used to isolate these bacteria from various sources, including stool samples, food, and clinical specimens. 
  • Identification of Enteric Pathogens:It helps differentiate between different enteric pathogens, including Salmonella, Shigella, and other Gram-negative bacteria. 
  • Pharmaceutical and Food Testing:XLD Agar is also used in pharmaceutical and food testing to detect the presence of Salmonella and other bacteria. 
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
Xylose Lysine Deoxycholate Agar (XLD Agar) 500g Himedia
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