C1013
Carrageenan
suitable for gel preparation
Synonym(s):
Vegetable gelatin
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About This Item
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biological source
algae (red)
description
Predominantly κ and lesser amounts of λ carrageenan
form
powder
color
white to light brown
useful pH range
7.5-10.5 (1.5% in water)
cation traces
Ca: <3.5%
K: <11%
Na: <2.0%
suitability
suitable for gel preparation
storage temp.
room temp
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General description
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.
Application
Carrageenans are used to suppress immune response in vivo and in vitro via mechanisms believed to involve selective cytopathic effect on macrophages. As ι-, κ-, and λ-carrageenans have varying degress of sulfation, they may be studied comparatively for differences in protective, antiviral, and immunosuppression activities.
Carrageenans are used to suppress immune response in vivo and in vitro via mechanisms believed to involve selective cytopathic effect on macrophages. As ι-, κ-, and λ- carrageenans have varying degrees of sulfation, they may be studied comparatively for differences in protective, antiviral, and immunosuppression activities. Carrageenan may be used in the development of biomaterials such as bone graft substitutes; entrapping vessels such as biobeads and encapsulation vehicles for drug delivery. Carrageenan be used to develop hydrogels.
Preparation Note
Blended from various seaweeds to produce rigid gels.
Other Notes
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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
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
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
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
Doungnapa Buapool et al.
Journal of ethnopharmacology, 146(2), 495-504 (2013-01-29)
PLUCHEA INDICA LESS.: (Asteraceae) is a Thai medicinal plant used in traditional medicine for the treatment of hemorrhoids, lumbago, leucorrhoea and inflammation. This study investigated the molecular mechanism of anti-inflammatory activity of Pluchea indica leaf extract in lipopolysaccharide (LPS)-stimulated RAW
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