Description
Specifications Table
| Product Name | Drigalski Litmus Lactose Agar | M659-500 gm Himedia |
|---|---|
| Quantity/Pack Size | 500 gm |
| Form | Powder |
| Grade | Microbiology Grade |
| Application | Differentiation of lactose-fermenting bacteria |
Product Description
Drigalski Litmus Lactose Agar is a specialized microbiological medium designed for the isolation and differentiation of lactose-fermenting bacteria. This agar, formulated with litmus and lactose, helps in identifying bacterial colonies based on their ability to ferment lactose, producing distinct color changes. It is widely used in clinical and research laboratories for diagnostic and educational purposes.
The medium contains peptone and meat extract as nutrient sources, while lactose serves as the fermentable carbohydrate. The litmus acts as a pH indicator, turning red in acidic conditions (lactose fermentation) and blue in alkaline conditions. This makes it easier to distinguish between lactose-positive and lactose-negative bacteria.
Drigalski Litmus Lactose Agar is particularly useful in identifying enteric bacteria like Escherichia coli and Enterobacter species. Its selective properties inhibit the growth of Gram-positive bacteria, making it ideal for studying Gram-negative organisms.
Whether you’re a student, researcher, or educator, this agar provides reliable results for bacterial differentiation. Buy Drigalski Litmus Lactose Agar online at eqipped for high-quality microbiology supplies.
FAQs
What is Drigalski Litmus Lactose Agar used for?
It is used to isolate and differentiate lactose-fermenting bacteria, particularly in clinical and research settings.
How does the litmus indicator work in this agar?
The litmus turns red in acidic conditions (lactose fermentation) and blue in alkaline conditions, helping identify bacterial colonies.
Can this agar be used for Gram-positive bacteria?
No, it is selective for Gram-negative bacteria and inhibits most Gram-positive organisms.
What is the shelf life of Drigalski Litmus Lactose Agar?
The powder has a long shelf life when stored properly, but prepared plates should be used within a few weeks.
Where can I buy Drigalski Litmus Lactose Agar online?
You can purchase it from eqipped, a trusted supplier of lab supplies in India.





