Accueil/Magasin/Sciences de la vie/Microbiologie/L'agar et le carraghéen peuvent être traduits par agar et carraghénan./Carrogène
Carraghénane, kappa, 500 g

Carraghénane, kappa, 500 g

Référence 3059.3
€ 247,33
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Carraghénane, kappa, 500 g
Détails du produit
Numero CAS: 7647-14-5
Formules chimiques: NaCl
Code SH: 13023100
Marque: Carl Roth
Carrageenan, kappa, highly pure, CAS No. [11114-20-8], EG-Nr. 234-350-2


Carrageenan, kappa highly pure

Carrageenans are agar-related hydrocolloids consisting of esters of galactose and anhydrogalactose polysaccarides.


Kappa Carrageenan is obtained by alkaline extraction from red algae (Rhodophyceae) of the order Gigartinales, purified by filtration and recovered by KCl precipitation. In ionic solutions, heat-solubilized kappa Carrageenan self-assembles into helical structures and gels during cooling, the gel parameters depending on the ions present: Potassium ions form rigid gels, calcium gels are strong but more flexibel.



Appearance white-pale tan
Gel strength (1,5 %, aqueous) 1200-1800 g/cm2
Particle size (95 %) ≤0,25 mm
Loss on drying ≤12 %
Arsenic (As) ≤3 ppm
Lead (Pb) ≤5 ppm
Cadmium (Cd) ≤2 ppm
Mercury (Hg) ≤1 ppm
pH value 7,0-11,0
Microbiological Analysis complies
Contains KCl., Being extracts from natural products, the properties (e.g. gelling behaviour, salt content) may vary from lot to lot.
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