Todd Hewitt broth

suitable for microbiology, NutriSelect® Plus

Pricing and availability is not currently available.

Quality Level





shelf life

limited shelf life, expiry date on the label

mfr. no.

NutriSelect® Plus


microbiological culture: suitable
microbiology: suitable


7.8±0.2 (25 °C)

Featured Industry

Clinical Testing
Food and Beverages


nonselective for Streptococcus spp.

General description

Todd Hewitt broth is an enrichment media, which consists of glucose buffers, sodium carbonate and disodium phosphate. It favors the growth of hemolytic streptococci. It is used for the cultivation of pathogenic microorganisms.


Recommended for the cultivation of group A hemolytic Streptococci used for serological studies.
Todd Hewitt broth has been used for the culture of various microorganisms, such as Bacillus subtilis and Streptococcus pneumoniae.


Components (g/L):
Beef Heart Infusion 500.00
Peptic Digest of Animal Tissue 20.00
Dextrose 2.00
Sodium Chloride 2.00
Sodium Phosphate 0.40
Sodium Carbonate 2.50

Preparation Note

Suspend 37 g of Todd Hewitt Broth in 1000 ml of distilled water. Mix well and dispense as desired. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

Legal Information

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


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Hazard Statements

Precautionary Statements

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
Todd, E.W., et al.
The Journal of Pathology and Bacteriology, 35, 1-97 (1932)
Assessing membrane fluidity and visualizing fluid membrane domains in bacteria using fluorescent membrane dyes
Wenzel M, et al.
Bio-protocol (2018)
Moody, M.D., et al.
American Journal of Public Health, 53, 1083-1083 (1963)
Observation of Pneumococcal Phase Variation in Colony Morphology
Li J, et al.
Bio-protocol, 7(15) (2017)
Finegold, S.M., et al.
Bailey and Scott's Diagnostic Microbiology (1982)
Streptococci- Overview of Detection, Identification, Differentiation and Cultivation Techniques
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