Description
Specifications Table
| Product Name | Lysine Arginine Iron (LAI) Agar |
|---|---|
| Quantity/Pack Size | 100 gm |
| Form | Powder |
| Grade | Microbiology Grade |
| Application | Bacterial identification, lysine/arginine decarboxylase testing |
Product Description
Lysine Arginine Iron Agar, commonly referred to as LAI agar, is a specialized microbiological medium designed to differentiate bacterial species based on their ability to decarboxylate lysine and arginine. This medium is widely used in clinical and research laboratories to identify enteric bacteria, particularly those involved in foodborne illnesses and infections.
The agar contains lysine and arginine as the primary substrates, along with glucose and bromocresol purple as pH indicators. When bacteria metabolize these amino acids, the resulting alkaline byproducts cause a color change in the medium, aiding in identification. The addition of iron helps detect hydrogen sulfide production, further enhancing its diagnostic utility.
LAI agar is particularly useful for distinguishing between Salmonella and Shigella species, as well as other enteric pathogens. Its versatility makes it a staple in microbiology labs, ensuring accurate and reliable results for bacterial identification.
Looking for a reliable supplier of LAI agar? eqipped offers high-quality Lysine Arginine Iron Agar for your research needs.
FAQs
What is Lysine Arginine Iron Agar used for?
LAI agar is used to differentiate bacterial species based on their ability to decarboxylate lysine and arginine, aiding in the identification of enteric pathogens.
How do I interpret the results on LAI agar?
A purple color indicates lysine decarboxylase activity, while a yellow color suggests no activity. Blackening indicates hydrogen sulfide production.
Can LAI agar be used for food testing?
Yes, LAI agar is commonly used to test food and water samples for the presence of pathogenic bacteria.
What is the shelf life of LAI agar?
The powdered medium has a long shelf life when stored properly. Prepared plates should be used within a few weeks for best results.
Where can I buy Lysine Arginine Iron Agar online?
You can purchase high-quality LAI agar from eqipped, a trusted supplier of microbiology lab products.





