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C1013

Sigma-Aldrich

角叉菜胶

suitable for gel preparation

同義詞:

蔬菜明胶

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About This Item

CAS號碼:
EC號碼:
MDL號碼:
分類程式碼代碼:
12352201
NACRES:
NA.25

生物源

algae (red)

品質等級

描述

Predominantly κ and lesser amounts of λ carrageenan

形狀

powder

顏色

white to light brown

有用的pH值範圍

7.5-10.5 (1.5% in water)

正離子痕跡

Ca: <3.5%
K: <11%
Na: <2.0%

適合性

suitable for gel preparation

儲存溫度

room temp

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一般說明

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,每个二糖单元含有一个(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-角叉菜胶不形成螺旋,并且不凝胶化。 角叉菜胶在商业上用作增稠剂和稳定剂。

應用

角叉菜胶被用来抑制体内体外的免疫反应,其机制被认为涉及对巨噬细胞的选择性细胞病变作用。 由于ι-、κ-和λ-角叉菜胶具有不同程度的硫酸化,因此可以对它们在保护性、抗病毒性和免疫抑制活性方面的差异进行比较研究。
角叉菜胶被用来抑制体内体外的免疫反应,其机制被认为涉及对巨噬细胞的选择性细胞病变作用。由于ι-、κ-和λ-角叉菜胶具有不同程度的硫酸化,因此可以对它们在保护性、抗病毒性和免疫抑制活性方面的差异进行比较研究。角叉菜胶可用于开发生物材料,如骨移植替代品;用于药物输送的截留容器,如生物芯和封装载体。角叉菜胶用于开发水凝胶。

準備報告

从各种海藻中混合制成刚性凝胶。

其他說明

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。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


分析證明 (COA)

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José A Fernández-Romero et al.
Antimicrobial agents and chemotherapy, 56(1), 358-368 (2011-11-09)
Topical microbicides that block the sexual transmission of HIV and herpes simplex virus 2 (HSV-2) are desperately needed to reduce the incidence of HIV infections worldwide. Previously we completed phase 3 testing of the carrageenan-based gel Carraguard. Although the trial
A W Thomson et al.
Agents and actions, 11(3), 265-273 (1981-05-01)
Carrageenans (kappa, lambda and iota) are sulphated polysaccharides isolated from marine algae that can markedly suppress immune responses both in vivo and in vitro. Impairment of complement activity and humoral responses to T-dependent antigens, depression of cell-mediated immunity, prolongation of
M L Weiner
Agents and actions, 32(1-2), 46-51 (1991-01-01)
Food-grade carrageenan is a safe natural product prepared from seaweed. Its addition to food imparts many desirable characteristics which have allowed it to be used continuously for centuries. The long safe history of this natural food additive is confirmed by
Ahu Uraz et al.
Journal of clinical and experimental dentistry, 5(1), e23-e29 (2014-01-24)
The objective of this study was to histologically and histomorphometrically evaluate the efficacy of the new formulations of eggshell-derived calcium carbonate in rats. The study was conducted on 30 adult male rats. Four standardized and circular intrabony defects were created
A W Thomson
Biomedicine / [publiee pour l'A.A.I.C.I.G.], 28(3), 148-152 (1978-05-01)
Since the biological effects of carrageenan were reviewed in 1972 by Di Rosa it has become clear from a large number of reports that this algal polysaccharide markedly influences immune responses. Profound suppression of immunity evidenced by impaired antibody production

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