Additional Selective and Differential Cell Culture Media
NEOGEN Tryptone No. 1, 500 g
Tryptone No. 1 is an enzymatic digest of casein and meat for use in preparing microbiological culture media in a laboratory setting. Tryptone No. 1 is not intended for use in the diagnosis of disease or other conditions in humans. Tryptone No. 1 is an enzymatic digest of casein and meat used as a nitrogen source in culture media. Casein is the main protein of milk, and a rich source of amino-acid nitrogen. Tryptone No. 1 is rich in tryptophane, making it valuable for use in detecting indole production. The absence of detectable levels of carbohydrates in Tryptone makes it a suitable peptone in differentiating bacteria on the basis of their ability to ferment various carbohydrates. Several media containing Tryptone are specified in standard methods for multiple applications.For more information visit https://www.neogen.com/solutions/Microbiology/tryptone-number-1
NEOGEN Bile Salts No. 3, 500 g
Bile Salts No. 3 is a mixture of bile salts for use in preparing microbiological culture media in a laboratory setting. Several media containing Bile Salts No. 3 are recommended in standard methods for multiple applications. Bile Salts No. 3 is not intended for use in the diagnosis of disease or other conditions in humans.Bile Salts No. 3 is a refined bile salts mixture, comprising mainly sodium cholate and sodium desoxycholate. Its primary use is as a selective agent for the isolation of Gram-negative micro-organisms, inhibiting Gram-positive cocci. Bile Salts No. 3 is prepared especially for use in MacConkey Agar and Violet Red Bile Agar. This fraction of bile is highly active allowing maximum selection of organisms of enteric origin at relatively low concentrations (0.15%) and is soluble in distilled or deionized water and neutral to slightly alkaline in pH.For more information visit https://www.neogen.com/solutions/Microbiology/bile-salts-number-3
NEOGEN Yeast Extract, 500 g
Yeast Extract is an autolysate of yeast cells used in preparing microbiological culture media in a laboratory setting. Yeast Extract is not intended for use in the diagnosis of disease or other conditions in humans.Yeast Extract is the water-soluble portion of autolyzed yeast. The autolysis is carefully controlled to preserve naturally occurring B-complex vitamins. Yeast Extract is prepared and standardized for bacteriological use and cell cultures and is an excellent stimulator of bacterial growth. Yeast Extract is generally employed in the concentration of 0.3% - 0.5%. Yeast Extract is typically prepared by growing baker’s yeast, Saccharomyces spp., in a carbohydrate-rich plant medium. The yeast is harvested, washed, and resuspended in water, where it undergoes autolysis, i.e., self-digestion using the yeast’s enzymes.For more information visit https://www.neogen.com/solutions/Microbiology/yeast-extract
NEOGEN Agar, Bacteriological No. 1, 500 g
Agar, Bacteriological No. 1 is a solidifying agent for use in preparing microbiological culture media in a laboratory setting. Agar, Bacteriological No. 1 is not intended for use in the diagnosis of disease or other conditions in humans. Agar, Bacteriological No. 1 conforms with the testing specified in the USP/EP Pharmacopeia.Agar is a phycocolloid extracted from a group of red-purple algae, usually Gelidium spp. Agar was first suggested for microbiological purposes in 1881 by Fannie Hesse. By the early 1900’s, agar became the gelling agent of choice over gelatin because agar remains firm at growth temperature for many pathogens and agar is generally resistant to a breakdown by bacterial enzymes. The use of agar in microbiological media significantly contributed to the advance of microbiology, paving the way to study pure cultures.For more information visit https://www.neogen.com/solutions/Microbiology/agar-bacteriological-number-1
NEOGEN Agar, Bacteriological No. 1, 10 kg
Agar, Bacteriological No. 1 is a solidifying agent for use in preparing microbiological culture media in a laboratory setting. Agar, Bacteriological No. 1 is not intended for use in the diagnosis of disease or other conditions in humans. Agar, Bacteriological No. 1 conforms with the testing specified in the USP/EP Pharmacopeia.Agar is a phycocolloid extracted from a group of red-purple algae, usually Gelidium spp. Agar was first suggested for microbiological purposes in 1881 by Fannie Hesse. By the early 1900’s, agar became the gelling agent of choice over gelatin because agar remains firm at growth temperature for many pathogens and agar is generally resistant to a breakdown by bacterial enzymes. The use of agar in microbiological media significantly contributed to the advance of microbiology, paving the way to study pure cultures.For more information visit https://www.neogen.com/solutions/Microbiology/agar-bacteriological-number-1
NEOGEN Yeast Extract, 10 kg
Yeast Extract is an autolysate of yeast cells used in preparing microbiological culture media in a laboratory setting. Yeast Extract is not intended for use in the diagnosis of disease or other conditions in humans.Yeast Extract is the water-soluble portion of autolyzed yeast. The autolysis is carefully controlled to preserve naturally occurring B-complex vitamins. Yeast Extract is prepared and standardized for bacteriological use and cell cultures and is an excellent stimulator of bacterial growth. Yeast Extract is generally employed in the concentration of 0.3% - 0.5%. Yeast Extract is typically prepared by growing baker’s yeast, Saccharomyces spp., in a carbohydrate-rich plant medium. The yeast is harvested, washed, and resuspended in water, where it undergoes autolysis, i.e., self-digestion using the yeast’s enzymes.For more information visit https://www.neogen.com/solutions/Microbiology/yeast-extract
NEOGEN Phosphate Buffer, pH 7.2, 500 g
Phosphate Buffer, pH 7.2 is used for the preparation of microbiological dilution blanks in a laboratory setting. Phosphate Buffer, pH 7.2 is not intended for use in the diagnosis of disease or other conditions in humans. The formula for phosphate buffer is specified by the American Public Health Association (APHA) for use in diluting test samples. Phosphate Buffer, pH 7.2 is specified for use in diluting water, dairy products and food for microbiological methods. In the examination of water and dairy products the addition of magnesium chloride is recommended. This buffer is also referred to as Butterfield’s Buffered Phosphate Diluent and recommended for examination of food. Phosphate Buffer, pH 7.2 stabilizes the pH of water used for dilutions.For more information visit https://www.neogen.com/solutions/Microbiology/phosphate-buffer-ph-72
NEOGEN Phosphate Buffer, pH 7.2, 5 kg
Phosphate Buffer, pH 7.2 is used for the preparation of microbiological dilution blanks in a laboratory setting. Phosphate Buffer, pH 7.2 is not intended for use in the diagnosis of disease or other conditions in humans. The formula for phosphate buffer is specified by the American Public Health Association (APHA) for use in diluting test samples. Phosphate Buffer, pH 7.2 is specified for use in diluting water, dairy products and food for microbiological methods. In the examination of water and dairy products the addition of magnesium chloride is recommended. This buffer is also referred to as Butterfield’s Buffered Phosphate Diluent and recommended for examination of food. Phosphate Buffer, pH 7.2 stabilizes the pH of water used for dilutions.For more information visit https://www.neogen.com/solutions/Microbiology/phosphate-buffer-ph-72
NEOGEN Cronobacter Selective Broth, 500 g
Cronobacter Selective Broth (CSB) is recommended by ISO 22964 for the isolation and identification of Cronobacter spp. (formerly Enterobacter sakazakii), and is not intended for use in the diagnosis of disease or other conditions in humans.Although rarely causing infections in immunocompetent adults, members of the Cronobacter genus have been implicated in sepsis, meningitis and necrotizing enterocolitis with a high death rate in neonates. These opportunistic pathogens are common in the environment and their ability to survive desiccation presents a significant risk for post-pasteurization contamination and survival in spray dried milk products. Enzymatic digest of animal tissues and meat extract provide a source of nitrogen and essential vitamins.For more information visit https://www.neogen.com/solutions/Microbiology/cronobacter-selective-broth
NEOGEN Agar No. 1 Bacteriological, 500 g
Agar No. 1 Bacteriological is 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.A high clarity agar with good gelling properties and a low concentration of metal ions. This agar is suitable for all bacteriological purposes including sensitivity testing and pour plate techniques. A firm gel is obtained at working concentrations of 1.0 to 1.5%. No significant precipitation is observed on reheating or prolonged holding at 65°C.For more information visit https://www.neogen.com/solutions/Microbiology/agar-number-1-bacteriological
NEOGEN Glucose (Dextrose), 500 g
Glucose is a fermentable carbohydrate and is used when preparing microbiological culture media in a laboratory setting. Glucose is not intended for use in the diagnosis of disease or other conditions in humans.Glucose is a fermentable carbohydrate which acts as an energy source in culture media.For more information visit https://www.neogen.com/solutions/Microbiology/glucose-dextrose
NEOGEN Sodium Chloride (Bacteriological), 500 g
Sodium Chloride is a salt often used when preparing microbiological culture media in a laboratory setting. Sodium Chloride is not intended for use in the diagnosis of disease or other conditions in humans. When added to culture media Sodium Chloride allows for adjustments in osmotic pressure.For more information visit https://www.neogen.com/solutions/Microbiology/sodium-chloride-bacteriological
NEOGEN Sodium Chloride (Bacteriological), 10 kg
Sodium Chloride is a salt often used when preparing microbiological culture media in a laboratory setting. Sodium Chloride is not intended for use in the diagnosis of disease or other conditions in humans. When added to culture media Sodium Chloride allows for adjustments in osmotic pressure.For more information visit https://www.neogen.com/solutions/Microbiology/sodium-chloride-bacteriological
NEOGEN Skim Milk Powder, 10 kg
Skim Milk Powder is used when preparing microbiology culture media in a laboratory setting. Milk Powder is not intended for use in the diagnosis of disease or other conditions in humans. A bacteriological grade of thermophile free spray dried skim milk. Used in Milk Plate Count Agar NCM0119 and in media for diagnostic tests involving the digestion or coagulation of casein and the fermentation of lactose. Recommended working concentration 10%.For more information visit https://www.neogen.com/solutions/Microbiology/skim-milk-powder
NEOGEN Meat Peptone, 5 kg
Meat Peptone is 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.Meat Peptone is a highly nutritious enzymatic digest of meat and may be used as an ingredient in culture media.For more information visit https://www.neogen.com/solutions/Microbiology/meat-peptone