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琼脂粉,Agar;granulated, purified and free from inhibitors, suitable for microbiology

1016141000;别名:琼脂;洋菜;琼胶;Agar-agar;Gum agar;微生物级琼脂粉;细胞培养级琼脂粉;植物细胞培养级琼脂粉

线性分子式: (C12H18O9)n CAS号: 9002-18-0 MDL编号: MFCD00081288 EC索引号: 232-658-1
货号(SKU): 1.01614
CAS号: 9002-18-0
MDL号: MFCD00081288
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¥4,619.47

说明

一般描述

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, 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.
 

应用

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.
 

特点和优势

Our Granulated media are:
  • Safer - Significant reduction of inhalation of toxic and allergenic substances resulting in fewer allergic responses. Less contamination of working tools and environment
  • Accurate - No separation of components and no clumping, even under humid or warm conditions, ensure a uniform product with higher performance accuracy
  • Fast - Rapid and uniform dissolution in water
  • Easier - Easier handling and weighing due to the better flow properties
  • Reliable - Homogenous distribution of ingredients guarantees high reproducibility even if only small amounts are used.

联系

Replaces: 1.01614.5007
 

分析说明

Appearance (colour): brownish-yellow
Appearance (description): granules
Identity (NIR): passes test
Identity (Iodine - test): passes test
Identity (Solidification point): passes test
Identity (Turbidity - test): passes test
Solidification point: 32 - 36 °C
Ca (Calcium): ≤ 0.5 %
Mg (Magnesium): ≤ 0.1 %
Sulfated ash (600 °C): ≤ 6 %
Loss on drying (105 °C; 4 h): ≤ 12 %
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): passes test
Growth (Streptococcus pyogenes ATCC 21059): passes test
Growth (Staphylococcus aureus ATCC 25923 (WDCM 00034)): passes test
Growth (Shigella sonnei ATCC 29930 (WDCM 00127)): passes test
Growth (Streptococcus agalactiae ATCC 13813): passes test
Growth (Streptococcus equinus DSM 20062): passes test
Growth (Streptococcus pneumoniae ATCC 6301): passes test
Growth (Candida albicans ATCC 10231 (WDCM 00054)): passes test
Suitability for microbiology: passes test
 
 

属性

生物来源

algae

质量水平

形式

solid

效能

11000 mg/kg LD50, oral (Rat)

保质期

limited shelf life, expiry date on the label

包装

pkg of 1 kg

pH值(酸碱度)

6.8 (20 °C, 100 g/L in H2O)

mp

90 °C

溶解性

slightly soluble 20 g/L

堆积密度

550 kg/m3

application(s)

microbiology

储存温度

15-25°C

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

 

安全信息

储存分类代码

11 - Combustible Solids

WGK

WGK 1

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50
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