Health And Safety
Laboratory Equipment
Educational Equipment
Lab Chemicals & Reagents
Meters & Testers
Weight Scale & Balance
Garments & Textile Testing
Electrical & Electronics
Civil & Construction
Industrial Safety Equipment
Q1
What is the price of MacConkey Agar Medium in Bangladesh?
MacConkey Agar Medium - Selective Culture Media for Gram-Negative Bacteria
৳6,500
নতুন পণ্য—এখনো কোনো রিভিউ নেই
রিভিউ লিখুন
Product Code : P0399
Product Specification
Key product information at a glance.
Product Code
P0399
Brand
Himedia
Origin
Made in india
Category
Lab Chemicals & Reagents
Subcategory
Lab Chemicals
Available Sizes
500gm
Availability
In Stock
Product
MacConkey Agar Medium (Dehydrated Culture Media)
Function
Selective and Differential Culture Media for Gram-Negative Enteric Bacilli
Physical Appearance
Homogeneous, free-flowing light yellow-pink to pinkish powder
Prepared Medium
Reddish-purple to brownish-red clear to slightly opalescent firm gel
Typical Formula (g/L)
Pancreatic Digest of Gelatin/Casein: 17.0 | Peptone: 3.0 | Lactose: 10.0 | Bile Salts: 1.5 | NaCl: 5.0 | Neutral Red: 0.03 | Crystal Violet: 0.001 | Agar: 13.5
Final pH (at 25°C)
7.1 ± 0.2
Quantity Required
~51.53 g/L to 55.0 g/L distilled water
Sterilization
Autoclave at 121°C (15 lbs pressure) for 15 minutes
Storage
Store dehydrated powder between 10°C and 30°C in an airtight container away from light
Standard Pack Size
500 grams HDPE container
Product Description
MacConkey Agar Medium | Culture Media for Gram-Negative Bacteria
MacConkey Agar Medium is the cornerstone selective and differential formulation used in diagnostic bacteriology laboratories worldwide. Specifically engineered to isolate members of the family Enterobacteriaceae and other Gram-negative bacilli from clinical specimens, dairy goods, processed foods, and wastewater, it plays an indispensable diagnostic role across hospital pathology laboratories, university microbiology faculties, pharmaceutical testing units, and public health surveillance centers throughout Bangladesh.
Differentiating pathogenic enteric bacilli such as Salmonella, Shigella, and Proteus from commensal or indicator coliforms like Escherichia coli and Klebsiella requires a reliable selective chemical matrix. MacConkey Agar achieves selective inhibition through the synergistic action of bile salts and crystal violet, which inhibit the growth of unwanted Gram-positive organisms without impairing Gram-negative recovery. Simultaneously, it provides differential diagnostics through lactose carbohydrate incorporation paired with the pH indicator neutral red. Microorganisms capable of fermenting lactose produce acidic end-products, lowering the local agar pH below 6.8 and turning neutral red into intense pink-to-red colonies (frequently encircled by a precipitated zone of bile salts). Non-lactose fermenting bacteria metabolize peptone instead, forming colorless, transparent colonies that blend with the background medium.
Supplied as a dehydrated, homogeneous, free-flowing powder, it dissolves uniformly in distilled water (typically 51.53 g/L or 55.07 g/L depending on specific pharmacopeial or standard formulations) and autoclaves to a clear, reddish-brown liquid that gels smoothly into resilient Petri plates. Victor Scientific Co. supplies authentic dehydrated culture media, laboratory reagents, and bacteriological apparatus nationwide with guaranteed quality certification, batch traceability, and prompt courier delivery across all 64 districts of Bangladesh.
✹ Key Features
Selective Gram-Negative Isolation
Contains calibrated concentrations of bile salts and crystal violet to inhibit Gram-positive cocci and bacilli while fostering the growth of Enterobacteriaceae.
Clear Lactose Differential System
Incorporates lactose and neutral red indicator to distinguish lactose fermenters (pink/red colonies) from non-lactose fermenters (colorless/translucent colonies).
High Nutritional Performance
Enriched with enzymatic digests of casein and animal tissue to supply essential amino acids, nitrogenous nutrients, and trace minerals for robust colony development.
Smooth Gel Surface & High Elasticity
Solidifies with 1.35% to 1.5% high-grade bacteriological agar, producing a firm, non-slipping surface that withstands loop streaking without furrowing or tearing.
Reliable Analytical Reproducibility
Manufactured under strict ISO/cGMP standards to ensure minimal batch-to-batch variation in selectivity, colonial recovery, and color reaction clarity.
Moisture-Proof Laboratory Packaging
Sealed in chemically inert, air-tight high-density polyethylene (HDPE) containers that safeguard the dehydrated powder against ambient humidity and degradation.
✹ Applications
- Clinical microbiology diagnostic testing for urinary tract infections (UTI), stool cultures, and systemic enteric pathogens
- Coliform and fecal coliform screening in municipal drinking water, bottled mineral water, and industrial effluent
- Dairy, meat, and processed food hygiene verification, bioburden testing, and sanitary monitoring
- Pharmaceutical bioburden testing and microbial limit validation according to standard pharmacopeia
- Academic undergraduate and postgraduate laboratory practicals in medical microbiology, bacteriology, and biotechnology
✹ Why Choose MacConkey Agar Medium?
- Dual-action functionality simultaneously isolates and differentiates target bacterial colonies on a single plate.
- Well-defined colony colors allow rapid, reliable preliminary pathogen identification within 18 to 24 hours.
- Highly soluble powder boils quickly to a homogeneous solution without leaving stubborn undispersed clumps.
- Genuine institutional procurement and dependable stock availability backed by Victor Scientific Co.
✹ Benefits
- Accelerates diagnostic workflows by eliminating the need to streak non-selective plates when targeting Gram-negative rods.
- Lowers operational laboratory costs through high-yield 500g packaging capable of producing nearly 10 liters of ready media.
- Reduces cross-contamination risks through consistent chemical inhibition of contaminating Gram-positive organisms.
- Backed by certified Material Safety Data Sheets (MSDS), Certificates of Analysis (COA), and local technical support.
✹ About Victor Scientific Co.
Victor Scientific Co. provides quality laboratory equipment, measuring instruments and scientific tools in Bangladesh. We supply reliable products for educational institutions, industries, laboratories and professional users.
Frequently Asked Questions (FAQ)
A1
The price of MacConkey Agar Medium (500g bottle) in Bangladesh typically ranges between BDT 8,000 and BDT 11,500, depending on the manufacturing brand (such as HiMedia, Oxoid, or Merck) and specific formulation (with or without crystal violet/NaCl). Contact Victor Scientific Co. directly for exact quotes and institutional pricing.
Q2
How do lactose-fermenting bacteria look on MacConkey Agar?
A2
Lactose-fermenting organisms (such as Escherichia coli and Enterobacter aerogenes) produce acid that lowers the medium pH, causing the neutral red indicator to turn pink or deep red. E. coli often produces a characteristic surrounding zone of precipitated bile salts.
Q3
What appearance do non-lactose fermenters have on this medium?
A3
Non-lactose fermenting bacteria (such as Salmonella typhimurium, Shigella flexneri, and Proteus mirabilis) do not ferment lactose; instead, they utilize peptone, which produces an alkaline reaction and leaves colonies translucent, colorless, or pale amber.
Q4
What is the preparation ratio for dehydrated MacConkey Agar powder?
A4
Standard formulations typically require suspending 51.53 grams (or 55.07 grams for formulations with crystal violet and NaCl) in 1,000 ml of purified distilled water, boiling to dissolve completely, and autoclaving at 121°C (15 psi) for 15 minutes.
Q5
Does Victor Scientific Co. deliver culture media safely across Bangladesh?
A5
Yes, Victor Scientific Co. packages all culture media bottles in protective cushioning and moisture-barrier cartons to ensure safe delivery to all 64 districts in Bangladesh—including Chattogram, Rajshahi, Khulna, and Sylhet—within 24 to 48 hours.
Customer Reviews (0)
এই পণ্যটিতে এখনো কোনো রিভিউ নেই।
প্রথম verified reviewটি লিখুন।
