Columbia Agar

suitable for microbiology, NutriSelect® Plus

Columbia Blood Agar

Quality Level


according to ISO 10272-1:2017
according to ISO 10272-2:2017



product line




shelf life

limited shelf life, expiry date on the label


agar, 15.0 g/L
sodium chloride, 5.0 g/L
special nutrient substrate, 23.0 g/L
starch, 1.0 g/L


NutriSelect® Plus


bioburden testing: suitable
microbe id | specific enzyme detection: suitable
microbiological culture: suitable
microbiology: suitable (microbial identification)

final pH

7.3±0.2 (25 °C)

Featured Industry

Clinical Testing
Food and Beverages


Gardnerella spp.
Haemophilus spp.
Pneumococcus spp.
nonselective for Bacteroides spp.
nonselective for Campylobacter spp.
nonselective for Clostridium spp.
nonselective for Corynebacterium spp.
nonselective for Enterococcus spp.
nonselective for Escherichia coli
nonselective for Neisseria spp.
nonselective for Staphylococcus spp.
nonselective for Streptococcus spp.
nonselective for bacteria (General Media)
nonselective for coliforms

Related Categories


This high-grade complete medium acc. to Ellner is for the cultivation of fastidious microorganisms. It is also used as a base for the preparation of a variety of special media.

Preparation Note

Dissolve 42 g in 1 litre distilled water. Sterilize by autoclaving at 121°C for 15 minutes.

Other Notes

Base agar in a medium for isolating Listeria spp. from heavily contaminated material; In a simple plate assay for detection of group A streptococcus proteinase.

Legal Information

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
W.L. Hynes et al.
Journal of Microbiological Methods, 4, 25-25 (1985)
E S Bannerman et al.
Applied and environmental microbiology, 54(1), 165-167 (1988-01-01)
Food-associated outbreaks of human listeriosis have emphasized the importance and necessity of screening food for the presence of Listeria isolates-selective agar medium combining acriflavine (10 mg/liter) with ceftazidime (50 mg/liter) was developed. A total of 1,099 cheese production specimens were...
Clostridia are relatively large, gram-positive, rod-shaped bacteria that can undergo only anaerobic metabolism.
Read More
On the Trail of Campylobacter - The Campylobacter is one of the leading causes of human gastroenteritis. Common Campylobacter species C. jejuni, C. coli, and C. lari are responsible for most cases of campylobacteriosis. However, other species, like C. fetus, which causes spontaneous abortions, have also been associated with human illness. Campylobacter are Gram-negative, spiral-shaped, microaerophilic and motile bacteria with uni- or bi-polar fl agella
Read More
Campylobacter spp. are regarded as the leading cause of bacterial gastroenteritis in humans worldwide.
Read More
Streptococci- Overview of Detection, Identification, Differentiation and Cultivation Techniques
Read More

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