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Merck
CN

05039

琼脂

suitable for microbiology

别名:

琼脂-琼脂, 胶琼脂

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关于此项目

线性分子式:
(C12H18O9)n
化学文摘社编号:
eCl@ss:
42040102
UNSPSC Code:
41106212
NACRES:
NA.74
EC Number:
232-658-1
MDL number:
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sterility

non-sterile

Quality Level

form

powder

shelf life

limited shelf life, expiry date on the label

packaging

pkg of 50 g, pkg of 500 g

storage condition

(Tightly closed)

ign. residue

≤5%

loss

≤12% loss on drying

pH

6-7.5 (1.5%after autoclaving)

mp

85-95 °C

transition temp

gel point 33-37 °C (1.5% solution, after autoclaving)

gel strength

>800 g/cm2 (1.5% gel, Nikkan, after autoclaving)

solubility

H2O: 1.5% at 70 °C, clear to very faintly turbid, almost colorless

application(s)

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

InChI key

GYYDPBCUIJTIBM-DYOGSRDZSA-N

General description

琼脂作为微生物培养基的固化剂被广泛应用于微生物学。它是从海藻中提取的多糖,主要由琼脂糖组成。琼脂基本上是一种惰性物质,这使它成为微生物培养基的理想材料,因为它不会干扰微生物的生长。琼脂可以固化培养基,使微生物在固体环境中生长,促进不同菌落的形成,并可以选择性地分离特定的微生物。琼脂还用于制备选择性和差别化培养基,这些培养基可以提供额外的营养物质或其他化学物质,以选择性地促进或抑制特定微生物的生长。琼脂通过高压灭菌灭菌,然后倒入培养皿冷却和固化,形成微生物生长的表面。

Application

琼脂通常用作许多微生物培养基的固化剂,用于各种制药、环境、食品和饮料样品中的细菌、酵母和霉菌的生长和鉴定。


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存储类别

11 - Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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商品

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.


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全球贸易项目编号

货号GTIN
199540-25G04061838763303
199540-5G04061838763310
05039-500G04061835571314
05039-50G04061838636393
05039-5KG04061832578569