05039

Agar

suitable for microbiology

• Synonim(y): Agar-agar, Gum agar
• Wzór liniowy: (C₁₂H₁₈O₉)_n
• Numer CAS: 9002-18-0
• Numer WE: 232-658-1
• Numer MDL: MFCD00081288
• Kod UNSPSC: 41106212
• eCl@ss: 42040102
• NACRES: NA.74

Właściwości

• sterylność: non-sterile
• Poziom jakości: 100
• Formularz: powder
• okres trwałości: limited shelf life, expiry date on the label
• opakowanie: pkg of 50 g; pkg of 500 g
• warunki przechowywania: (Tightly closed)
• pozostałość po prażeniu: ≤5%
• strata: ≤12% loss on drying
• pH: 6-7.5 (1.5%after autoclaving)
• mp: 85-95 °C
• temp. przejścia: gel point 33-37 °C (1.5% solution, after autoclaving)
• siła żelu: >800 g/cm² (1.5% gel, Nikkan, after autoclaving)
• rozpuszczalność: H₂O: 1.5% at 70 °C, clear to very faintly turbid, almost colorless
• Zastosowanie: agriculture; 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
• Klucz InChI: GYYDPBCUIJTIBM-DYOGSRDZSA-N

Opis

Opis ogólny

Agar is 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, facilitating the formation of distinct colonies and selective isolation of specific microorganism. Agar is also used to prepare 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 dishesto cool and solidify, forming the surface for microbial growth.

Zastosowanie

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, and food and beverage samples.

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Środki ochrony indywidualnej: Eyeshields, Gloves, type N95 (US)