Columbia Agar Base

Item No.  NCM0038A

In stock
Out of stock
Expect availability in 2-4 weeks
Columbia Agar Base is used with blood for the isolation and cultivation of a wide variety of fastidious microorganisms. Columbia Agar Base is not intended for use in the diagnosis of disease or other conditions in humans. A modification of the original Columbia Agar base formulation, Columbia Agar Base provides a medium that is suitable for use with both defibrinated horse and sheep blood. The peptone mixture provides a source of nitrogen, essential vitamins and amino acids. The starch provides a carbon source and sodium chloride maintains osmotic balance. Originally described as a general purpose nutritious agar base by Ellner et al. Columbia Agar is more frequently used when enriched by the addition of sterile blood. The medium is suitable for supporting the growth and determining hemolytic reactions of a variety of microorganisms  
Analyte Anaerobes, Brucella, Campylobacter spp., Clostridium, E. coli, Gardnerella, Haemophilus, Helicobacter, Listeria spp., Neisseria, Pseudomonas, Staphylococci, Streptococci
Brand NEOGEN Culture Media
Formula Liter
Columbia Peptone Mixture 23.0 g/L
Corn Starch 1.0 g/L
Sodium Chloride 5.0 g/L
Agar 12.0 g/L
Grams per Liter 41.00
Liters per 500g 12.00
Mass 500 g
Package Dimensions 4.60 IN x 2.90 IN x 8.60 IN
Package Weight 1.35 LB
Plates per 500g 670.00
  1. Suspend 41 grams of the medium in one liter of purified water.
  2. Heat with frequent agitation and boil for one minute to completely dissolve the medium.
  3. Autoclave at 121°C for 15 minutes.
  4. Prepare 5 to 10% blood agar by adding appropriate volume of sterile defribrinated horse or sheep blood to melted sterile agar medium, cooled to 45-50°C.
Previous Item Number Product was previously known as Acumedia Product: 7125 Columbia Blood Agar Base; and LabM Product: LAB001 Columbia Agar Base




Our experts are here to help. If you need information beyond what is provided in Validation Reports under the Documents tab, please contact us and we will be happy to assist you. Learn more