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MRS Agar

SKU Pack Size Price
MRSA0500 500g $76.73
MRSA1000 1kg $144.38
MRSA5000 5kg $697.95

From: $76.73

From: $76.73
SKU: MRSACFG Category:


Glucose 20
Yeast extract 5
Sodium Acetate 5
TriAmmonium Citrate 2
Dipotassium Hydrogen Phosphate 2g/l 2
Tween 80 1g
Magnesium sulphate 0.2
Manganese sulphate 0.05
Agar 15

MRS Medium, named for its inventors De Man, Rogosa and Sharpe is a selective culture medium designed to favour the luxuriant growth of Lactobacilli in bacteriological cell cultures.

Although MRS medium is selective for lactobacilli but some growth of leuconostocs and pediococci may occur. One of the constituents of MRS Agar is sodium acetate, which suppresses the growth of many competing bacteria.

Yeast extract and meat extract present in MRS Agar provide sources of carbon, nitrogen, and vitamins for general bacterial growth. The yeast extract also contains vitamins and amino acids specifically required by Lactobacilli.

Polysorbate 80 is a surfactant which assists in nutrient uptake by Lactobacilli.
Magnesium sulfate and manganese sulfate provide cations used in metabolism.

View MRS Broth.

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