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Key Documents

Y0875

Sigma-Aldrich

Select Yeast Extract

for use in microbial growth medium

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About This Item

Número de CAS:
MDL number:
UNSPSC Code:
41106212
NACRES:
NA.85

grade

for molecular biology

Quality Level

sterility

non-sterile

form

powder

technique(s)

microbiological culture: suitable

pH

6.5-7.5(10% solution)

solubility

H2O: 100 mg/mL, clear to slightly hazy, yellow to brownish-yellow

application(s)

microbiology

storage temp.

room temp

suitability

nonselective for Escherichia coli
nonselective for coliforms

InChI

1S/C19H14O2/c20-18(21)11-17-15-8-4-3-7-14(15)16-10-9-12-5-1-2-6-13(12)19(16)17/h1-10,17H,11H2,(H,20,21)

InChI key

GQNBDGXKDJSVGQ-UHFFFAOYSA-N

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General description

Yeast extract is the water-soluble portion of autolyzed yeast, often used in culture media. Yeast extract contains a mixture of amino acids, peptides, water soluble vitamins and carbohydrates.
Yeast extract is used in all solid media, on which stock cultures are maintained, due to its ability in promoting growth of most bacterial contaminants, thereby making them visible to identify. Yeast extract does not enhance the growth of wild-type cells but essential for auxotrophic mutants.

Application

Select Yeast Extract has been used:
  • as a supplement in the minimal sporulating medium (MSL) for the secretory production of human tumor necrosis factor-α (TNFα) using the carboxypeptidase Y (Cpy) signal peptide.
  • in the isolation of halophilic archaea.
  • as a component of microbial growth medium for cultivation of marine bacterial strain Zobellia uliginosa.

    Suitable for use as nutritional source in microbial media.
Yeast extract is used as a bacteriological media component for a variety of microorganisms and molecular genetics applications.

Other Notes

Water soluble portion of autolyzed yeast with intact B-complex vitamins. Yeast extract is a mixture of amino acids, peptides, water soluble vitamins and carbohydrates and can be used as additive for culture media.

related product

Referencia del producto
Descripción
Precios

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Protocolos

General protocols for growth of competent cells in microbial medium.

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