56763
Ágar
high purity, low ionic content, low gel strenght, suitable for microbiology
Sinônimo(s):
Ágar de goma, Ágar-ágar
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About This Item
Fórmula linear:
(C12H18O9)n
Número CAS:
Número CE:
Número MDL:
Código UNSPSC:
41106212
NACRES:
NA.85
Produtos recomendados
Nível de qualidade
esterilidade
non-sterile
forma
powder
prazo de validade
limited shelf life, expiry date on the label
resíduo de ignição
≤4.0%
perda
≤10% loss on drying
turbidez
≤8 NTU (after autoclaving)
pf
85-95 °C
temperatura de transição
gel point 34-36 °C
força do gel
≥800 g/cm2
traços de ânion
sulfate (SO42-): ≤2.75%
traços de cátion
Ca: ≤500 mg/kg
Mg: ≤200 mg/kg
aplicação(ões)
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
chave InChI
GYYDPBCUIJTIBM-DYOGSRDZSA-N
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Descrição geral
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.
Aplicação
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.
Nota de análise
toxic substances: absence
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 1
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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