Mueller Kauffman Tetrathionate Broth Base A1 Quality | HX-MEDIA

MUELLER KAUFFMAN TETRATHIONATE BROTH BASE | HX-MEDIA

Product Overview

Mueller Kauffmann Tetrathionate Broth Base is a highly selective enrichment medium specially developed for the isolation, recovery, and enrichment of Salmonella species from clinical, food, pharmaceutical, dairy, veterinary, environmental, and water samples. The medium is extensively used in microbiology laboratories for the detection of Salmonella organisms that may be present in very low numbers or hidden within heavily contaminated specimens containing mixed microbial flora.

This medium plays an important role in food safety testing and public health microbiology because Salmonella species are among the most significant foodborne pathogens responsible for gastrointestinal infections, typhoid fever, and various enteric diseases. Direct isolation of Salmonella from contaminated samples is often difficult due to the presence of competing microorganisms. Mueller Kauffmann Tetrathionate Broth Base provides a selective environment that suppresses unwanted bacteria while allowing Salmonella organisms to multiply efficiently.

The selectivity of the medium is based on the production of tetrathionate after the addition of iodine-iodide solution to the prepared broth. Salmonella species possess the enzyme tetrathionate reductase, enabling them to utilize tetrathionate and survive under selective conditions. Many other intestinal bacteria are inhibited by tetrathionate, bile salts, and brilliant green dye present in the formulation.

The formulation contains carefully selected ingredients that support optimal enrichment:

• Peptones provide nitrogen, amino acids, vitamins, and essential nutrients for bacterial growth
• Sodium thiosulfate participates in tetrathionate formation
• Bile salts inhibit Gram-positive organisms and unwanted enteric bacteria
• Brilliant green enhances selectivity against competing flora
• Calcium carbonate neutralizes toxic acidic metabolites formed during bacterial growth and improves recovery of stressed organisms

Mueller Kauffmann Tetrathionate Broth Base is especially valuable for the recovery of injured or stressed Salmonella cells that may result from:

• Heat processing
• Refrigeration or freezing
• Drying procedures
• Chemical treatment
• Food preservation methods
• Environmental stress conditions

Mueller Kauffmann Tetrathionate Broth Base significantly improves the detection sensitivity of Salmonella in samples such as:

• Stool specimens
• Poultry products
• Meat and seafood samples
• Milk and dairy products
• Animal feed
• Pharmaceutical raw materials
• Water samples
• Environmental swabs
• Processed and packaged foods

After selective enrichment, cultures are commonly subcultured onto selective differential media including:

• XLD Agar
• SS Agar
• Brilliant Green Agar
• Hektoen Enteric Agar
• Bismuth Sulfite Agar

Mueller Kauffmann Tetrathionate Broth Base supports excellent growth and enrichment of:

• Salmonella typhi
• Salmonella paratyphi
• Non-typhoidal Salmonella species
• Foodborne Salmonella isolates
• Veterinary and environmental Salmonella strains

Advantages of Mueller Kauffmann Tetrathionate Broth Base

• Highly selective enrichment for Salmonella species
• Suppresses unwanted intestinal flora effectively
• Enhances recovery from heavily contaminated samples
• Supports growth of stressed and injured cells
• Improves isolation and detection sensitivity
• Reliable and reproducible performance
• Widely accepted in international microbiological testing protocols
• Suitable for routine laboratory and industrial quality control applications

Due to its excellent selectivity, nutrient balance, and enrichment efficiency, Mueller Kauffmann Tetrathionate Broth Base remains one of the most widely used and trusted enrichment media for Salmonella detection in clinical diagnostics, food microbiology, pharmaceutical quality control, environmental monitoring, veterinary microbiology, and research laboratories worldwide.

🔬 Key Features

• Selective enrichment medium for Salmonella species
• Suppresses competing intestinal microorganisms
• Supports recovery of stressed and injured cells
• Contains bile salts and brilliant green for enhanced selectivity
• Improves detection sensitivity in contaminated samples
• Suitable for food, clinical, pharmaceutical, and environmental testing
• Reliable and reproducible performance

🎯 Applications

• Isolation and enrichment of Salmonella species
• Food safety and quality control testing
• Clinical microbiology investigations
• Water and environmental monitoring
• Pharmaceutical microbial testing
• Veterinary microbiology laboratories
• Dairy and poultry industry testing
• Public health and epidemiological studies

🧪 Composition (Typical)

Final pH: 7.0 ± 0.2

🛠️ How to Use

1. Suspend the required quantity of medium in distilled water.
2. Heat gently with mixing to dissolve completely.
3. Sterilize as recommended.
4. Cool the medium and add sterile iodine-iodide solution before use.
5. Inoculate the test specimen aseptically.
6. Incubate at recommended temperature for 18–24 hours.
7. Subculture onto selective agar media for isolation and identification of Salmonella.

⏳Storage and Shelf Life

• Store in a cool, dry place away from moisture and direct sunlight
• Keep the container tightly closed after use
• Recommended storage temperature: 10–30°C
• Prepared medium should be used fresh after iodine addition
• Use before expiry date mentioned on the label

👍 Ideal For

✔ Clinical microbiology laboratories

✔ Pharmaceutical quality control laboratories

✔ Environmental monitoring laboratories

✔ Public health and research institutions

✔ Veterinary laboratories

✔ Water testing laboratories