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Home > Laboratory Supplies & Equipment > Labware > Agar & Growth Mediums
Growth mediums and gels are a staple of Biochemistry. Whether you are growing bacterial samples, or need gel for electrophoresis Spectrum has a wide variety of growth mediums and gels to choose from.
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Nutrient Agar - 250ml Bottle
Our Price: $14.95

Nutrient Agar is used to grow bacteria cultures for experiments. One bottle of Nutrient Agar should fill a minimum of 12 75mm petri dishes.
BenchMark Agarose LE 25g
Our Price: $37.80

Multi-purpose, high purity

Enhanced resolution and clarity
  • Reduced background
  • Low EEO / increased electrophoretic mobility
  • RNase, DNase, Protease-free
  • High hysteresis, improved thermal stability


Benchmark Agarose LE is a highly purified agarose, suitable for a variety of molecular biology applications. It is refined using an advanced process that excludes the use of organic solvents, yielding a cleaner end-product with a significantly reduced environmental impact.
MacCornkey Agar - Dehydrated - 100g
Our Price: $39.95

MacCornkey Agar - Dehydrated - 100g

Agar medium used for the isolation and differentiation of the Enterobacteriaceae based upon the fermentation of lactose.

MacConkey Agar is a selective agar medium used for the isolation, differentiation enumeration of the Enterobacteriaceae and other Gram negative bacteria in water, dairy products, other sanitary materials and clinical specimens.
Tryptone Glucose Extract Agar Prepared Plate - Set of 10
Our Price: $40.00

Agar medium which mets APHA specifications for obtaining the microbial content of food, dairy products, water and wastewater.

Tryptone Glucose Extract Agar is formulated according to the specifications described by the APHA for use in performing the Aerobic Plate Count of bacteria in dairy and food products.
MacConkey Agar Prepared Plate - Set of 10 Plates
Our Price: $41.00

MacConkey Agar Prepared Plate - Set of 10 Plates

Agar medium used for the isolation and differentiation of the Enterobacteriaceae based upon the fermentation of lactose.

MacConkey Agar is a selective agar medium used for the isolation, differentiation enumeration of the Enterobacteriaceae and other Gram negative bacteria in water, dairy products, other sanitary materials and clinical specimens.
Potato Dextrose Agar Prepared Plate - Set of 10 plates
Our Price: $41.00

Agar medium used for the isolation, identification, and cultivation of fungi.

Potato Dextrose Agar is recommended for the cultivation and isolation of yeasts and molds from dairy and food products.
Sabouraud Dextrose Agar Prepared Plate - Set of 10 plates
Our Price: $41.00

Agar medium used for the isolation, identification, and cultivation of fungi.

Sabouraud Dextrose Agar is an agar medium recommended for the isolation, cultivation, and identification of non-pathogenic and pathogenic fungi.
Standard Methods Agar Prepared Plate - Set of 10 plates
Our Price: $41.00

Agar medium which meets APHA specifications for obtaining the microbial content of milk and other sanitary materials.

Description: Standard Methods Agar is formulated according to the specifications described by the APHA for use in performing the standard plate count of bacteria in dairy products.
Starch Agar Prepared Plate -Set of 10
Our Price: $41.00

Beef extract provides the
nitrogen, vitamins, carbon, and amino acids in Starch Agar.  Starch
reacts with Gram Iodine to give a blue color.  Organisms hydrolyzing
starch through amylase production will produce a clearing around the
isolate while the remaining medium is blue.  Agar is the solidifying
agent.
EMB Agar Prepared Plate -Set of 10
Our Price: $41.00

EMB Agar was first developed by
Holt-Harris and Teague.  This formula contains both lactose and sucrose
with the two indicator dyes, eosin Y and methylene blue.  
Escherichia and Enterobacter
species can be easily distinguished from other Gram negative enteric
bacilli using this medium.  EMB Agar contains two mildly selective dyes,
eosin Y and methylene blue, which interact under strong acidic
conditions to impart metallic sheen to
Escherichia coli colonies.  In addition, E coli produces dark blue-black colonies.  Other coliforms produce mucoid, pinkish brown colonies.  Non-lactose fermenting bacteria Salmonella and Shigella, produce translucent or colorless colonies.  Acinetobacter, Aeromonas, Pseudomonas, Plesiomonas and Yersinia
also grow on this medium.  Gram-positive bacteria are inhibited by
eosin Y.  The slow lactose fermenters also ferment sucrose, which
reduces the incidence of false-positive interpretations.