Description
Specifications Table
| Product Name | MacConkey HiVeg Agar with CV, NaCl, 0.003% NR and 1.5% Agar |
|---|---|
| Pack Size | 500 gm |
| Form | Powder |
| Grade | Laboratory Grade |
| Application | Bacterial culture, selective isolation of Gram-negative bacteria |
Product Description
MacConkey HiVeg Agar is a specialized microbial culture medium designed for the selective isolation and differentiation of Gram-negative bacteria. Formulated with crystal violet (CV), sodium chloride (NaCl), neutral red (NR), and 1.5% agar, this medium inhibits Gram-positive bacteria while promoting the growth of lactose-fermenting and non-lactose-fermenting Gram-negative organisms. The inclusion of HiVeg components ensures high-quality results without animal-derived ingredients, making it suitable for vegan-friendly lab protocols.
This agar is widely used in clinical, research, and educational microbiology labs for identifying enteric pathogens like E. coli and Salmonella. The differential properties of the medium allow for easy visual distinction between lactose fermenters (pink colonies) and non-fermenters (colorless colonies), aiding in rapid bacterial identification.
When preparing MacConkey HiVeg Agar, ensure proper sterilization and cooling to 45–50°C before pouring plates. Store the powder in a cool, dry place and avoid moisture exposure to maintain efficacy. For best results, follow standard microbiological practices and use within the recommended shelf life.
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FAQs
What is MacConkey HiVeg Agar used for?
It is used to selectively isolate and differentiate Gram-negative bacteria, particularly enteric pathogens like E. coli and Salmonella.
How does the neutral red indicator work in this agar?
Neutral red turns pink in acidic conditions (lactose fermentation) and remains colorless in alkaline conditions (non-fermenters).
Can this agar be used for environmental sampling?
Yes, it is suitable for testing water, food, and environmental samples for Gram-negative bacterial contamination.
What is the shelf life of MacConkey HiVeg Agar powder?
The unopened powder has a shelf life of 24 months when stored properly. Prepared plates should be used within 4 weeks.
Is this agar suitable for vegan labs?
Yes, HiVeg components replace animal-derived ingredients, making it ideal for vegan-friendly protocols.
