Yeast Extract

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IBI’s Yeast Extract is used in preparing microbiological culture media. Yeast extract is the water soluble portion of autolyzed yeast. The autolysis is carefully controlled to preserve the naturally occurring B-complex vitamins. It is an excellent stimulator of bacterial growth and is used in culture media in place of, or in addition to, beef extract.

Physical Specifications:

CAS#: 8013-01-2
pH (@ 25°C): 6.7
Clarity (1% solution, NTU): 1.5
Ash: 10.6%
Moisture: <5.0%
Filterability (g/cm²): 2.7

Molecular Biology Specifications:

Carbohydrate Total: 17.9%
Nitrogen Total: 10.9%
Amino Nitrogen Total: 6.1%
AN/TN: 55.0

Yeast Extract Specification Sheet

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SDS Link:

Yeast Extract - SDS

Biological Testing (CFU/g):

● Coliform Negative
● Salmonella Negative
● Spore Count 10
● Standard Plate Count 100
● Thermophile Count 5

Recommended Use:

IBI’s Yeast Extract is used in preparing microbiological culture media. Yeast Extract is the water soluble portion of autolyzed yeast. The autolysis is carefully controlled to preserve the naturally occurring B-complex vitamins. It is an excellent stimulator of bacterial growth and used in culture media in place of, or in addition to, beef extract.

Storage:

Store at room temperature. Keep tightly sealed. Protect from moisture and light.

Warning:

Avoid contact with eyes, skin, and clothing. Wash thoroughly with water after handling. See Material Safety Data Sheet for additional information.