CAS 9000-07-1 Carrageenan - Analytical Products / Alfa Chemistry

CAT	AP9000071
CAS	9000-07-1
MDL Number	MFCD00081480
EC Number	232-524-2

Description	Non-gelling, Mixture of κ and λ carrageenans
Size	1G, 5G

Carrageenan as a Functional Additive in the Production of Cheese and Cheese-Like Products

Błażej B Błaszak, Grażyna Gozdecka, Alexander Shyichuk

Acta Sci Pol Technol Aliment. Apr-Jun 2018;17(2):107-116.

PMID: 29803212

Carrageenan: A Natural Seaweed Polysaccharide and Its Applications

Vipul D Prajapati, Pankaj M Maheriya, Girish K Jani, Himanshu K Solanki

Carbohydr Polym. 2014 May 25;105:97-112.

PMID: 24708958

Development of a Nasal Spray Containing Xylometazoline Hydrochloride and Iota-Carrageenan for the Symptomatic Relief of Nasal Congestion Caused by Rhinitis and Sinusitis

Christine Graf, Andreas Bernkop-Schnürch, Alena Egyed, Christiane Koller, Eva Prieschl-Grassauer, Martina Morokutti-Kurz

Int J Gen Med. 2018 Jul 4;11:275-283.

PMID: 30013382

Distinct Effects of Carrageenan and High-Fat Consumption on the Mechanisms of Insulin Resistance in Nonobese and Obese Models of Type 2 Diabetes

Sumit Bhattacharyya, Leo Feferman, Joanne K Tobacman

J Diabetes Res. 2019 Apr 15;2019:9582714.

PMID: 31179345

The Role of Carrageenan and Carboxymethylcellulose in the Development of Intestinal Inflammation

John Vincent Martino, Johan Van Limbergen, Leah E Cahill

Front Pediatr. 2017 May 1;5:96.

PMID: 28507982

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Case Study

Carrageenan Used for the Synthesis of Copper-Based Bionanocomposites for Photocatalytic Degradation of Cefixime

Kumari, Shilpa, et al. International Journal of Biological Macromolecules 283 (2024): 137963.

Carrageenan, a sulfated polysaccharide derived from red algae, was used as a green stabilizing and encapsulating agent in the synthesis of a copper-based bionanocomposite (Cu-Car BNC) for the photocatalytic degradation of Cefixime (CF), an antibiotic contaminant. This environmentally benign approach employed Argemone albiflora leaf extract as a reducing agent to synthesize CuO nanoparticles without toxic reagents.
In the synthesis, a 0.35% carrageenan solution was mixed with 0.1 mol/dm³ CuSO₄ and varying volumes of plant extract (20-60 mL) under alkaline conditions, followed by microwave-assisted synthesis at 120 °C. Characterization via XRD, FTIR, TEM, XPS, and UV-Vis spectroscopy confirmed successful formation and stabilization of CuO nanoparticles (11.9-13.8 nm) within the carrageenan matrix. The resulting Cu-Car BNC showed excellent photocatalytic activity, degrading 91.85% of 20 ppm Cefixime in 90 minutes under optimized conditions.
Mechanistically, the carrageenan matrix facilitated effective dispersion and stability of CuO nanoparticles, enabling enhanced generation of reactive species under light irradiation. Kinetic analysis indicated pseudo-first-order behavior, and degradation intermediates were further investigated using LC-MS.
This study highlights carrageenan's dual role as a biocompatible scaffold and a green nanomaterial stabilizer, offering a sustainable strategy for fabricating efficient photocatalysts for environmental remediation of pharmaceutical pollutants.

Carrageenan (CG) Used for the Preparation of Magnetic Nanocatalysts for 1,2,3-Triazole Synthesis via Click Chemistry

Khaleghi, Nima, et al. Nanoscale Advances 6.9 (2024): 2337-2349.

Carrageenan (CG), a naturally derived polysaccharide, was utilized as a biocompatible support in the fabrication of a copper-anchored magnetic nanocatalyst (Fe₃O₄@CG@CPTMS/OL-Cu(I)) for the efficient synthesis of 1,2,3-triazole-linked phenylacetamides. This study employed a green synthetic route integrating carrageenan-modified superparamagnetic iron oxide nanoparticles (SPIONs) with propargyl and phenylacetamide derivatives through molecular hybridization.
SPIONs were prepared via co-precipitation of Fe²⁺ and Fe³⁺ salts, followed by functionalization with CG and 3-chloropropyltrimethoxysilane (CPTMS). The functionalized surface was subsequently linked to a tailored organic linker (OL) via amide coupling and finally complexed with Cu(I) through CuCl immobilization. The resulting nanocatalyst exhibited excellent recyclability and magnetic recoverability.
Applied as a heterogeneous catalyst in copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, the CG-based nanocatalyst enabled high-yield formation of triazole derivatives under mild conditions. This approach demonstrated notable advantages, including reduced reaction time, high atom economy, eco-friendliness, and a simple workup procedure.
This work showcases carrageenan's critical role in constructing green, reusable catalytic platforms, highlighting its potential in developing sustainable nanotechnology solutions for medicinally relevant heterocyclic synthesis.

Carrageenan Used for the Preparation of Intelligent Biodegradable Packaging Films for Real-Time Amine Sensing in Seafood Preservation

Sangeetha, U. K., De, S., Khatun, S., Das, S., & Sahoo, S. K. (2025). International Journal of Biological Macromolecules, 143533.

In this study, carrageenan was employed as the film-forming biopolymer to develop an intelligent packaging material capable of detecting seafood spoilage. The fabrication process began by dissolving 1 g of κ-carrageenan in 50 mL of water under constant stirring at 60 °C for 30 minutes. Glycerol (0.3 g) was then added as a plasticizer, and stirring continued for another 30 minutes.
Urea-dithiosalicylic acid-derived carbon dots (UCDs), known for their aggregation-induced emission (AIE) properties, were incorporated into the carrageenan matrix. UCDs were prepared at varying concentrations (2%, 3%, and 4% w/w of carrageenan), sonicated in ethanol to ensure uniform dispersion, and added dropwise into the carrageenan solution. The mixture was stirred for 1 hour at 60 °C, then degassed via sonication and vacuum treatment to remove air bubbles.
The resulting solution was poured into polypropylene petri dishes (13 cm diameter) and oven-dried at 50 °C for 10 hours to form films. After conditioning at 75% relative humidity for 48 hours, a zein-stearic acid (Z/SA) coating was applied by spray-coating one side of the films in three layers to enhance water barrier properties. Stearic acid was first dissolved in ethanol, followed by water addition and zein incorporation to form the final coating solution.
The resulting composite films exhibited strong ammonia sensing ability, antibacterial activity, and full soil biodegradability within 35 days.