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56763

琼脂

Name: 琼脂
Brand: SIAL

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

别名:

洋菜，琼胶, 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:

9002-18-0

UNSPSC Code:

41106212

NACRES:

NA.85

EC Number:

232-658-1

MDL number:

MFCD00081288

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属性

Quality Level

200

sterility

non-sterile

form

powder

shelf life

limited shelf life, expiry date on the label

ign. residue

≤4.0%

loss

≤10% loss on drying

turbidity

≤8 NTU (after autoclaving)

mp

85-95 °C

transition temp

gel point 34-36 °C

gel strength

≥800 g/cm²

anion traces

sulfate (SO₄^2-): ≤2.75%

cation traces

Ca: ≤500 mg/kg, Mg: ≤200 mg/kg

application(s)

microbiology

SMILES string

O1[C@@H]([C@@H]([C@@H]([C@H](C1OC2[C@H]3OCC2OC([C@H]3O)C)O)OC)O)CO

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

说明

General description

琼脂具有高纯度、低离子含量和低凝胶强度，作为微生物培养基的凝固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鉴别性培养基，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。琼脂通过高压灭菌法灭菌，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凝固剂，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。

Analysis Note

毒性物质：无

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存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

新产品

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

BCCD5385

BCCB4264

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货号	GTIN
56763-500G	04061832589428