Additional Selective and Differential Cell Culture Media
NEOGEN Casein Peptone Type I, 10 kg
Casein Peptone Type I is an enzymatic hydrolysate of casein for use in preparing microbiological culture media in a laboratory setting and is not intended for use in the diagnosis of disease or other conditions in humans.Casein Peptone Type I is an enzymatic hydrolysate of casein, rich in peptones and amino acids (including tryptophane). This peptone can be utilized by most bacteria as a growth substrate.For more information visit https://www.neogen.com/solutions/Microbiology/casein-peptone-type-1
NEOGEN m-Broth, 500 g
M Broth is used for the cultivation of Salmonella spp in a laboratory setting. M-Broth is not intended for use in the diagnosis of disease or other conditions in humans. M-Broth is prepared according to the formula of Sperber and Diebel, and contains the nutrients necessary for good growth and flagella development of Salmonella. This medium is used for cultivating Salmonella in foods and feeds by the accelerated enrichment serology (ES) procedure. M-Broth conforms to standard procedures recommended in food testing and monoclonal and polyclonal enzyme immunoassays (EIA).For more information visit https://www.neogen.com/solutions/Microbiology/m-broth
NEOGEN A-1 Medium, 500 g
A-1 Medium is used for the detection of coliform organisms in water and food in a laboratory setting. A-1 Medium is not intended for use in the diagnosis of disease or other conditions in humans.Since the early 1900’s enumeration of coliform organisms, specifically E. coli, have been used to determine water purity. Elevated temperature and most-probable-number (MPN) methods are routinely used for analysis of water and food samples for presence of fecal coliforms. A-1 Medium was formulated to hasten E. coli recovery and reduce the incidence of false positive cultures.In 1972 Andrews and Presnell developed A-1 Medium. This medium recovers E. coli from estuarine water in 24 hours instead of 72 hours, and in greater numbers without the pre-enrichment step. A-1 Medium can be used in a single step procedure for the detection of fecal coliforms in source water, seawater, treated wastewater, and foods.For more information visit https://www.neogen.com/solutions/Microbiology/a-1-medium
NEOGEN Rose Bengal Chloramphenicol Agar, 500 g
Rose Bengal Chloramphenicol Agar is used for the selective isolation and enumeration of yeasts and molds from foods. Rose Bengal Chloramphenicol Agar is not intended for use in the diagnosis of disease or other conditions in humans. Rose Bengal Chloramphenicol Agar Base is a selective medium for the enumeration of fungi. In 1944, Smith and Dawson used Rose Bengal for the selective isolation of fungi from soil samples. This formula was prepared with a neutral pH, deviating from the usual acidified medium. Several investigations have found a neutral pH with the addition of a selective agent have been successful in supporting fungal growth and restricting bacterial growth. Rose Bengal Agar pre-supplemented with Chloramphenicol is a modification of the Rose Bengal Chlortetracycline Agar formula of Jarvis.For more information visit https://www.neogen.com/solutions/Microbiology/rose-bengal-chloramphenicol-agar
NEOGEN Letheen Broth Base without Tween, 5 kg
Letheen Broth Base (no tween) is used with Tween 80 (Polysorbate 80) for the testing of samples containing quaternary ammonium compounds for antimicrobial activity in a laboratory setting. Letheen Broth Base (no tween) is not intended for use in the diagnosis of disease or other conditions in humans.In 1948, Weber and Black described the value of a highly nutritional solid medium containing neutralizing agents for quaternary ammonium compounds in sanitizers. The addition of Lecithin and Polysorbate 80 to Tryptone Glucose Extract (TGE) Agar resulted in a medium that effectively neutralizes quaternary ammonium compounds while testing germicidal activity. Letheen Agar is a modification of TGE Agar with the addition of Lecithin and Polysorbate 80.Letheen Broth Base was developed as a subculture medium for the neutralization of quaternary ammonium compounds in disinfectant testing.For more information visit https://www.neogen.com/solutions/Microbiology/letheen-broth-base-without-tween
NEOGEN M-Green Yeast and Fungi Broth, 500 g
M-Green Yeast and Fungi Broth is used for the detection of fungi in beverages in a laboratory setting. M-Green Yeast and Fungi Broth is not intended for use in the diagnosis of disease or other conditions in humans.M-Green Yeast and Fungi Broth is a relatively more complex formula compared to other media used for isolation of fungi and yeast. This formulation is rich in nutrients which allows for excellent fungal growth. Bacterial growth is inhibited by an acid pH.Fungi have been found in potable water and on the inner surface of distribution system pipes. They can survive water treatment or they enter the system after treatment and remain viable.For more information visit https://www.neogen.com/solutions/Microbiology/m-green-yeast-and-fungi-broth
NEOGEN Dermatophyte Test Medium (DTM), 500 g
Dermatophyte Test Medium is used for the selective isolation of dermatophytic fungi and is not intended for use in the diagnosis of disease or other conditions in humans.In 1969, Taplin et al. developed this medium for the isolation and recognition of dermatophytic fungi, the causative agent of ringworm from hair, nails, and skin. Dermatophyte Test Medium is preferred for isolation and early recognition of Microsporum, Trichophyton, and Epidermophyton genera because of a distinct color change in the medium. Rapidly-growing species may produce a complete color change in the medium in 3 days. The slower-growing species will change the indicator in longer time periods. Other organisms may grow but can be recognized as non-dermatophytes by lack of a color change.For more information visit https://www.neogen.com/solutions/Microbiology/dermatophyte-test-medium-dtm
NEOGEN Glucose OF Medium, 500 g
Glucose OF Medium is used for the confirmation of Enterobacteriaceae in foods according to ISO 21528-1&2:2017, and is not intended for use in the diagnosis of disease or other conditions in humans.Enzymatic digest of casein provides nitrogen, vitamins, minerals and amino acids essential for growth. Sodium chloride supplies essential electrolytes for transport and osmotic balance. Dipotassium phosphate acts as a buffer system. Glucose is the fermentable carbohydrate providing carbon and energy. Bromothymol blue is the pH indicator.Colonies of presumptive Enterobacteriaceae should be confirmed by means of tests for the fermentation of glucose and the presence of oxidase. If the colonies are oxidase-negative and glucose-positive, the sample shall be regarded as being positive for Enterobacteriaceae.For more information visit https://www.neogen.com/solutions/Microbiology/glucose-of-medium
NEOGEN Pancreatic Digest of Gelatin, 500 g
Pancreatic Digest of Gelatin is an enzymatic digest of gelatin for use in preparing microbiological culture media in a laboratory setting. Pancreatic Digest of Gelatin is not intended for use in the diagnosis of disease or other conditions in humans.Pancreatic Digest of Gelatin provides a complex nitrogen source and is used as a media ingredient for fermentation studies. Pancreatic Digest of Gelatin alone is used to support the growth of non-fastidious microorganisms. Pancreatic Digest of Gelatin is deficient in carbohydrates and distinguished by low cystine and tryptophan content.For more information visit https://www.neogen.com/solutions/Microbiology/pancreatic-digest-gelatin
NEOGEN D/E Neutralizing Broth without Tween, 10 kg
D/E Neutralizing Broth is used to neutralize and determine the bactericidal activity of antiseptics and disinfectants. D/E Neutralizing Broth without Tween is not intended for use in the diagnosis of disease or other conditions in humans.D/E Neutralizing Broth was developed by Dey and Engley to neutralize a broad spectrum of disinfectants and preservative antimicrobial chemicals, including quaternary ammonium compounds, phenolics, iodine, chlorine preparations, mercurials, formaldehyde, and glutaraldehyde. D/E Neutralizing media neutralize higher concentrations of residual antimicrobials when compared with other standard neutralizing formulations, such as Letheen media, Thioglycollate media, and Neutralizing Buffer.For more information visit https://www.neogen.com/solutions/Microbiology/de-neutralizing-broth-without-tween
NEOGEN Casein Peptone Type I, 500 g
Casein Peptone Type I is an enzymatic hydrolysate of casein for use in preparing microbiological culture media in a laboratory setting and is not intended for use in the diagnosis of disease or other conditions in humans.Casein Peptone Type I is an enzymatic hydrolysate of casein, rich in peptones and amino acids (including tryptophane). This peptone can be utilized by most bacteria as a growth substrate.For more information visit https://www.neogen.com/solutions/Microbiology/casein-peptone-type-1
NEOGEN Brilliant Green Agar with Sulfapyridine, 500 g
Brilliant Green Agar w/ Sulfapyridine is used for the selective enrichment of Salmonella spp. in a laboratory setting. Brilliant Green Agar w/ Sulfapyridine is not intended for use in the diagnosis of disease or other conditions in humans.Brilliant Green Agar was first described by Kristensen et al and later modified by Kauffmann. The outstanding selectivity of this medium permits the use of moderately heavy inocula evenly distributed over the surface. The addition of sulfonamides into Brilliant Green Agar further inhibits Escherichia coli and Proteus spp. Osborne and Stokes used 0.1% Sodium Sulfapyridine to enhance the recovery of Salmonella from whole egg and egg yolk.For more information visit https://www.neogen.com/solutions/Microbiology/brilliant-green-agar-with-sulfapyridine
NEOGEN Letheen Broth Base Modified without Tween, 10 kg
Letheen Broth Base Modified without Tween is used with Polysorbate 80 for the recovery of microorganisms from cosmetics in a laboratory setting. Letheen Broth Base Modified without Tween is not intended for use in the diagnosis of disease or other conditions in humans.In 1948, Weber and Black described the value of a highly nutritional solid medium containing neutralizing agents for quaternary ammonium compounds in sanitizers. The addition of Lecithin and Polysorbate 80 to Tryptone Glucose Extract (TGE) Agar resulted in a medium that effectively neutralizes quaternary ammonium compounds in testing of germicidal activity. Total neutralization of disinfectants is critical. Disinfectant residues can result in a false negative (no-growth) test.For more information visit https://www.neogen.com/solutions/Microbiology/letheen-broth-base-modified-without-tween
NEOGEN A-1 Medium, 10 kg
A-1 Medium is used for the detection of coliform organisms in water and food in a laboratory setting. A-1 Medium is not intended for use in the diagnosis of disease or other conditions in humans.Since the early 1900’s enumeration of coliform organisms, specifically E. coli, have been used to determine water purity. Elevated temperature and most-probable-number (MPN) methods are routinely used for analysis of water and food samples for presence of fecal coliforms. A-1 Medium was formulated to hasten E. coli recovery and reduce the incidence of false positive cultures.In 1972 Andrews and Presnell developed A-1 Medium. This medium recovers E. coli from estuarine water in 24 hours instead of 72 hours, and in greater numbers without the pre-enrichment step. A-1 Medium can be used in a single step procedure for the detection of fecal coliforms in source water, seawater, treated wastewater, and foods.For more information visit https://www.neogen.com/solutions/Microbiology/a-1-medium
NEOGEN D/E Neutralizing Broth without Tween, 500 g
D/E Neutralizing Broth is used to neutralize and determine the bactericidal activity of antiseptics and disinfectants. D/E Neutralizing Broth without Tween is not intended for use in the diagnosis of disease or other conditions in humans.D/E Neutralizing Broth was developed by Dey and Engley to neutralize a broad spectrum of disinfectants and preservative antimicrobial chemicals, including quaternary ammonium compounds, phenolics, iodine, chlorine preparations, mercurials, formaldehyde, and glutaraldehyde. D/E Neutralizing media neutralize higher concentrations of residual antimicrobials when compared with other standard neutralizing formulations, such as Letheen media, Thioglycollate media, and Neutralizing Buffer.For more information visit https://www.neogen.com/solutions/Microbiology/de-neutralizing-broth-without-tween