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λ-角叉菜胶 [λ-卡拉胶, λ-角叉胶],λ-Carrageenan;plant mucopolysaccharide

别名:λ-卡拉胶,λ-角叉胶;CAS号: 9064-57-7 EC 号: 232-953-5 MDL编号: MFCD00151513 NACRES: NA.25
制造商品牌: 西格玛 Sigma-Aldrich
货号(SKU): 22049
CAS号: 9064-57-7
MDL号: MFCD00151513
签订合同 √ 正规发票 √ 技术支持 √ 质量保障 √ 全程可追溯 √
¥376.00

说明

Viscosity index:90%-110%

一般描述

角叉菜胶是来自红藻细胞壁的粘多糖。 它们是由1,3α-1,4β-半乳聚糖组成的阴离子线性聚合物,每个二糖单元具有一个(κ-)、两个(ι-)或三个(λ-)硫酸盐。 在离子溶液中,κ-和ι-角叉菜胶自缔合成螺旋结构,分别形成刚性或柔性凝胶。 λ-角叉菜胶不会形成螺旋结构并且是非凝胶化的。 角叉菜胶被用作商业增稠剂和稳定剂。
以1%浓度溶于0.2M KCl溶液中时,为非凝胶状态
 

应用

角叉菜胶被用于在 体内 和 体外 实验中抑制通过巨噬细胞选择性细胞病变效应机制而产生的免疫应答。非凝胶状态的λ-角叉菜胶被用于诱导啮齿动物后爪炎症和炎性疼痛或气囊炎症模型。 最近,角叉菜胶被直接注射到啮齿动物的关节中,模拟关节炎疼痛和炎症。
 

分析说明

溶解度:
在H2O中为10 mg/mL:清澈至非常模糊,无色至淡黄色
 

其他说明

为了全面了解我们针对客户研究提供的各种多糖产品,建议您访问我们的碳水化合物分类页面。

non-gelling at 1% in 0.2 M KCl-solution Carrageenans are mucopolysaccharides from the cell walls of the red algae. They are anionic linear polymers composed of 1,3α-1,4β-galactans having one (κ-), two (ι-) or three (λ-) sulfates per disaccharide unit. In ionic solutions, κ- and ι-carrageenans self-associate into helical structures that form rigid or flexible gels, respectively. λ-carrageenans do not form helices and are non-gelling. Carrageenans are used commercially as thickeners and stabilizing agents.

non-gelling at 1% in 0.2 M KCl-solution Carrageenans are mucopolysaccharides from the cell walls of the red algae. They are anionic linear polymers composed of 1,3α-1,4β-galactans having one (κ-), two (ι-) or three (λ-) sulfates per disaccharide unit. In ionic solutions, κ- and ι-carrageenans self-associate into helical structures that form rigid or flexible gels, respectively. λ-carrageenans do not form helices and are non-gelling. Carrageenans are used commercially as thickeners and stabilizing agents.
Carrageenans are used to suppress immune response in vivo and in vitro via mechanisms believed to involve selective cytopathic effect on macrophages. Non-gelling λ-carrageenan is used to induce inflammation and inflammatory pain in the rodent hindpaw or air pouch models. More recently carrageenan has been injected directly into the joints of rodents to model arthritic pain and inflammation.

 
 

属性

生物来源

plant

形式

solid

颜色

light yellow

储存温度

room temp

InChI

1S/C24H42O39S6/c25-1-5-9(27)11(29)18(61-67(42,43)44)22(54-5)57-15-8(4-52-65(36,37)38)56-23(19(13(15)31)62-68(45,46)47)59-16-10(28)6(2-26)55-24(20(16)63-69(48,49)50)58-14-7(3-51-64(33,34)35)53-21(32)17(12(14)30)60-66(39,40)41/h5-32H,1-4H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44)(H,45,46,47)(H,48,49,50)/p-6/t5-,6-,7-,8-,9+,10+,11+,12+,13+,14+,15+,16+,17-,18-,19-,20-,21+,22+,23-,24+/m1/s1

InChI key

CFLYIPGVTFOQCI-SQESNNFJSA-H

 

安全信息

储存分类代码

11 - Combustible Solids

WGK

WGK 2

个人防护装备

Eyeshields, Gloves, type N95 (US)

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