Dehydrated Microbiology Media
Alkali Scientific Tryptic Soy Broth, 16x125mm Screw Cap Glass, 5mL, 10/Pk
Tryptic Soy Broth (TSB) is a versatile, nutrient rich liquid medium formulated to support the growth of a wide variety of aerobic and facultative anaerobic microorganisms. Its balanced composition promotes robust microbial growth and makes it suitable for sterility testing, microbial recovery, and routine culturing applications in pharmaceutical, clinical, and industrial laboratories. The medium is supplied in durable 16x125mm screw cap glass tubes that provide secure sealing and help maintain sterility during incubation and handling. The clear broth allows easy visual detection of turbidity during microbial growth studies. This ready to use format supports consistent workflows and reliable results in microbiological testing and quality control procedures.
Alkali Scientific Inhibitory Mold Agar 30mL, 15x100mm Plates, 10/Pk
Inhibitory Mold Agar (IMA) 30mL Plates, 10/Pk is a selective culture medium formulated for the isolation and recovery of pathogenic fungi from clinical and environmental specimens. The medium supports the growth of molds and yeasts while incorporating antibiotics that suppress bacterial contamination, improving the clarity and reliability of fungal recovery. It is commonly used for detecting medically significant fungi such as Aspergillus, Candida, and Cryptococcus species. The deeper 30mL agar fill provides additional surface depth that supports the development of filamentous fungal colonies during extended incubation. Each plate is prepared under sterile conditions to ensure consistent performance and dependable results in diagnostic, research, and mycology laboratory workflows.
Alkali Scientific Indole Broth 4mL Tube, 10/Pk
Indole Broth, commonly referred to as Tryptone Water, is a biochemical test medium used to determine the ability of microorganisms to produce indole from the amino acid tryptophan. Each tube contains 4mL of nutrient broth rich in tryptophan containing peptones that serve as substrates for bacterial metabolism. Organisms possessing the enzyme tryptophanase break down tryptophan to produce indole, pyruvic acid, and ammonia during incubation. After incubation, the presence of indole is detected by adding Kovac’s or Ehrlich’s reagent, which reacts with indole to produce a characteristic red layer at the liquid surface. A positive reaction indicates organisms such as Escherichia coli or Proteus vulgaris, while negative reactions remain yellow or unchanged. This test is an essential component of the IMViC series used to differentiate Enterobacteriaceae.
Alkali Scientific Horse Blood Overlay Bilayer, Plate, 10/Pk
Horse Blood Overlay Agar (Bilayer) is an enriched culture medium designed to improve visualization of hemolytic reactions and support the growth of fastidious microorganisms. Each plate features a two layer design consisting of a nutrient rich base agar layer and a thin overlay containing 5–7% defibrinated horse blood. This bilayer structure enhances contrast, allowing hemolysis zones produced by bacterial colonies to be observed more clearly than on standard blood agar plates. Horse blood is often preferred for certain diagnostic applications because it lacks the enzyme NADase, preserving essential growth factors such as Factor V required by organisms like Haemophilus species. The medium supports isolation and differentiation of hemolytic bacteria by producing clear alpha or beta hemolytic reactions, making it useful in clinical microbiology and diagnostic laboratories.
Alkali Scientific EF 18 Agar 24mL Plate, 10/Pk
EF 18 Agar is a selective and differential culture medium used for detecting Salmonella species in food, environmental, and water samples. Each sterile petri dish contains approximately 24mL of nutrient agar supplemented with sucrose, lysine, bile salts, and indicator dyes including bromothymol blue. The medium differentiates organisms based on sucrose fermentation and lysine decarboxylation reactions. Salmonella species typically do not ferment sucrose but can decarboxylate lysine, producing characteristic blue green colonies on the agar surface. In contrast, many non Salmonella bacteria ferment sucrose and generate acid, resulting in yellow colonies and surrounding medium. EF 18 agar is frequently used in membrane filtration methods and rapid detection workflows where reliable identification of Salmonella is required.
Alkali Scientific Fluid Thioglycollate Medium w/Indole 100mL Bottle, 1/Pk
Fluid Thioglycollate Medium is a versatile liquid culture medium used for sterility testing and cultivation of aerobic and anaerobic microorganisms. The formulation creates an oxygen gradient within the tube, allowing different organisms to grow at their preferred oxygen levels. Reducing agents remove dissolved oxygen, while an indicator helps visualize oxygen presence. Aerobic organisms grow near the surface, while anaerobes grow deeper in the medium. This design allows detection of a wide range of microorganisms in a single system. The medium is widely used in pharmaceutical testing, clinical microbiology, and laboratory research for monitoring microbial contamination and growth.
Alkali Scientific Sabouraud Dextrose Broth (SAB) w/Chloramphenicol 100mL, 1/Pk
Sabouraud Dextrose Broth with Chloramphenicol is a selective liquid culture medium designed for the enrichment and isolation of yeasts and molds from samples containing mixed microbial populations. The formulation enhances standard Sabouraud broth by including chloramphenicol, a broad spectrum antibiotic that suppresses many Gram positive and Gram negative bacteria. This helps prevent bacterial overgrowth that can interfere with fungal detection. The broth contains a high level of dextrose to support fungal metabolism and maintains an acidic pH that further discourages bacterial growth. It is widely used in environmental monitoring, food testing, and pharmaceutical microbiology when samples may contain both bacteria and fungi but selective fungal recovery is required.
Alkali Scientific Fluid Thioglycollate Medium (FTM) 1000mL Bottle, 1/Pk
Fluid Thioglycollate Medium (FTM) is a standard liquid enrichment medium used for sterility testing of pharmaceutical products and biological materials in accordance with United States Pharmacopeia (USP <71>) guidelines. Each bottle contains 1000mL (1 liter) of nutrient rich broth designed to support the growth of aerobic, anaerobic, and microaerophilic microorganisms. The formulation includes sodium thioglycollate and L cystine which act as reducing agents to create anaerobic conditions deeper in the medium while the surface layer remains oxygenated. A small amount of agar stabilizes the oxygen gradient by preventing convection currents. Resazurin serves as an oxidation indicator, turning pink in oxygen rich areas while the deeper anaerobic zones remain clear. This large volume format is ideal for high throughput sterility testing and routine microbiological quality control.
Sigma Aldrich Fine Chemicals Biosciences Tryptic Soy Agar, Vegitone | MFCD00132536 | 500 g
Tryptic Soy Agar, Vegitone | MFCD00132536 | 500 g
Research Products International Corp LB Brth Lnnx Pwd Anml Free
For propagation and maintenance of E. Coli. Low Salt Formula. Molecular Biology Grade. Dissolve 20 grams in 1 liter distilled water. Then adjust pH to 7.2. Heat and frequently agitate to completely dissolve. Sterilize by autoclaving for 15 minutes.
Teknova LB Lennox Broth, pH 7.5. 1kg.
1.00% Tryptone, 0.50% Yeast Extract, 0.50% Sodium Chloride, 0.48% Potassium Phosphate Dibasis
United States Biological Corporation Drop-out Mix Synthetic, Adenine Rich (2g) Minus Tryptophan w/o Yeast Nitrogen Base (DO, Dropout, Powder) | 100g
Drop-out Mixes are used as a supplement to Drop-out Base for making synthetic, complete media formulations in accordance with Methods in Yeast Genetics. All lots are quality control tested using the appropriate yeast strains and transformants.
Research Products International Corp Luria Brth Millr Pwd Anml Free
For propagation and maintenance of E. Coli. Low Salt Formula. Molecular Biology Grade. Dissolve 20 grams in 1 liter distilled water. Then adjust pH to 7.2. Heat and frequently agitate to completely dissolve. Sterilize by autoclaving for 15 minutes.