CASO Broth

suitable for microbiology, NutriSelect® Basic

Soybean Casein digest Broth, Casein peptone Soybean flour peptone Broth, Tryptic Soy Broth, TSB, Tryptone Soya Broth
Pricing and availability is not currently available.

Quality Level


according to ISO 10273:2017
according to ISO 21871:2006





shelf life

limited shelf life, expiry date on the label


casein peptone, 17 g/L
dipotassium hydrogen phosphate, 2.5 g/L
D(+)-glucose, 2.5 g/L
sodium chloride, 5 g/L
soy peptone, 3 g/L

mfr. no.

NutriSelect® Basic


bioburden testing: suitable
microbiological culture: suitable
microbiology: suitable
pathogen testing: suitable
sample preparation: suitable
water monitoring: suitable

final pH

7.3±0.2 (25 °C)

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Cleaning Products
Clinical Testing
Food and Beverages
Personal Care


nonselective for Bacillus spp.
nonselective for Bacteroides spp.
nonselective for Campylobacter spp.
nonselective for Candida 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

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Preparation Note

Dissolve 30 g in 1 litre distilled water and autoclave at 121°C for 15 minutes.

Other Notes

A selective and differential medium for the primary isolation of members of the Protease.

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
P M Hawkey et al.
Journal of clinical microbiology, 23(3), 600-603 (1986-03-01)
A new differential and selective medium for the isolation of members of the Proteeae, PIM (Proteeae isolation medium) agar, was developed and evaluated. The medium relies on the ability of all members of the Proteeae (with the exception of a...
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.
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Streptococci- Overview of Detection, Identification, Differentiation and Cultivation Techniques
Read More

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