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56763

Millipore

Gélose

high purity, low ionic content, low gel strenght, suitable for microbiology

Synonyme(s) :

Agar, Agar-agar

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About This Item

Formule linéaire :
(C12H18O9)n
Numéro CAS:
9002-18-0
Numéro CE :
232-658-1
Numéro MDL:
MFCD00081288
Code UNSPSC :
41106212
Nomenclature NACRES :
NA.85

Niveau de qualité

200

Stérilité

non-sterile

Forme

powder

Durée de conservation

limited shelf life, expiry date on the label

Résidus de calcination

≤4.0%

Perte

≤10% loss on drying

Turbidité

≤8 NTU (after autoclaving)

Pf

85-95 °C

Température de transition

gel point 34-36 °C

Résistance du gel

≥800 g/cm2

Traces d'anions

sulfate (SO42-): ≤2.75%

Traces de cations

Ca: ≤500 mg/kg
Mg: ≤200 mg/kg

Application(s)

microbiology

InChI

1S/C14H24O9/c1-5-8(16)13-11(7(21-5)4-20-13)23-14-10(18)12(19-2)9(17)6(3-15)22-14/h5-18H,3-4H2,1-2H3/t5?,6-,7?,8-,9+,10-,11?,12+,13+,14?/m1/s1

Clé InChI

GYYDPBCUIJTIBM-DYOGSRDZSA-N

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Description générale

Agar is of high purity, low ionic content, and low gel strength widely used in microbiology as a solidifying agent in microbial culture media. It is a polysaccharide derived from seaweed and is primarily composed of agarose. Agar is a mostly inert substance, which makes it an ideal material for microbial culture media because it doesn’t interfere with the growth of microorganisms. Agar can solidify media, allowing microorganisms to grow in a solid environment, which facilitates the formation of distinct colonies and selective isolation of specific microorganisms. Agar is also used in the preparation of selective and differential media, which can provide additional nutrients or other chemical substances to promote or inhibit the growth of specific microorganisms selectively. Agar is sterilized by autoclaving and then poured into Petri dishes, where it can cool and solidify, forming the surface for microbial growth.

Application

Agar is commonly used as a solidifying agent in many microbial culture media for the growth and identification of bacteria, yeasts and molds from various pharmaceutical, environmental, food and beverage samples.

Remarque sur l'analyse

toxic substances: absence

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
BCCD5385
BCCB4264
BCBP3685V
BCBF0719V
BCBF0719

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Applied and environmental microbiology, 74(16), 5195-5200 (2008-07-01)
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