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位置: 首页> 品牌> Sigma-Aldrich> 琼脂
半岛bd体育手机客户端 名称:
9002-18-0
Agar
Agar-Agar
Gum agar
琼脂
琼胶
洋菜
半岛bd体育手机客户端 介绍:

半岛bd体育手机客户端 说明

一般描述

琼脂是一种从海藻(Rhodophyceae)中获得的亲水性胶体。它可溶于沸水,而这对微生物学领域具有重要意义。
Agar chemically consists of two fractions: agarose, a neutral polymer of high gel strength and agaropectin, a non-gelling fraction with sulfated β-1,3-glycosidically linked D -galactose units.

应用

Agar has been used:

  • as a reference standard commercial agar to compare the physio-chemical, gelling properties of alkali-treated agar fromGracilaria tenuistipitata
  • as a component in the seed germination medium and rooting medium for commercially available soybean (Glycine max(L.) Merr) seeds
  • as a component of growth media forB. subtilismutant strain MTC871 based biofilm colonies
  • as a bacteriological agar component to prepare half strength Murashige-Skoog (MS 50%) medium forEchinocactus platycanthusseeds culture

琼脂已用于植物生长培养基中。
常见的工作浓度是: 6-12g/L。

包装

5, 10, 25 kg in poly drum
1 kg in poly bottle
100, 500 g in poly bottle

生化/生理作用

Agar is gel forming polysaccharide used as a gelling and stabilizing agent. Its serves as a cryoprotectant in processed foods, pharmaceuticals and cosmetics products.

其他说明

通用琼脂。

基本信息

线性分子式 (C12H18O9)n
EC 号 232-658-1
MDL编号 MFCD00081288
eCl@ss 42040102
NACRES NA.21

半岛bd体育手机客户端 性质

质量水平 200
生物来源 algae (Rhodophyceae)
形式 powder
technique(s) cell culture | mammalian: suitable
cell culture | plant: suitable
转变温度 congealing temperature <38 ℃ (1.5% in H2O)
适用性 microbiology tested
application(s) agriculture
microbiology
储存温度 room temp

安全信息

储存分类代码 11 - Combustible Solids
WGK WGK 1
个人防护装备 Eyeshields, Gloves, type N95 (US)

Sigma-Aldrich

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