56763

寒天

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

• 別名: アガーガム, アガー・アガー
• 化学式: (C₁₂H₁₈O₉)_n
• CAS Number: 9002-18-0
• EC Number: 232-658-1
• MDL番号: MFCD00081288
• UNSPSCコード: 41106212
• NACRES: NA.85

特性

• 品質水準: 200
• 無菌性: non-sterile
• フォーム: powder
• シェルフライフ: limited shelf life, expiry date on the label
• 強熱残分: ≤4.0%
• 損失: ≤10% loss on drying
• 濁度: ≤8 NTU (after autoclaving)
• mp: 85-95 °C
• 転移温度: gel point 34-36 °C
• ゲル強度: ≥800 g/cm²
• 微量陰イオン: sulfate (SO₄^2-): ≤2.75%
• 微量陽イオン: Ca: ≤500 mg/kg; Mg: ≤200 mg/kg
• アプリケーション: microbiology
• SMILES記法: 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

詳細

詳細

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.

アプリケーション

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.

アナリシスノート

毒物:含まない

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable