Carrageenan (E407)
- IUPAC Name
- zinc;1-(5-cyano-2-pyridinyl)-3-[(1S,2S)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate
- Molecular Formula
- C23H23FN4O7Zn
- Molecular Weight (g/mol)
- 551.8000
- InChIKey
- UHVMMEOXYDMDKI-JKYCWFKZSA-L
- InChI
- InChI=1S/C19H17FN4O3.2C2H4O2.Zn/c1-2-15(25)11-4-5-13(20)17(18(11)26)12-7-14(12)23-19(27)24-16-6-3-10(8-21)9-22-16;2*1-2(3)4;/h3-6,9,12,14,26H,2,7H2,1H3,(H2,22,23,24,27);2*1H3,(H,3,4);/q;;;+2/p-2/t12-,14+;;;/m1.../s1
- Synonyms & Trade Names
- zinc;1-(5-cyanopyridin-2-yl)-3-[(1S,2S)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate; MIV-150/ZA/CG; SCHEMBL25269777; SCHEMBL29362182; MFCD00081480; SY257533; NS00076251; zinc 1-(5-cyano-2-pyridyl)-3-[(1S,2S)-2-(6-fluoro-2-hydroxy-3-propanoyl-phenyl)cyclopropyl]urea diacetate
Categories
Technical Document
Carrageenan
Carrageenan is a family of sulfated polysaccharides extracted from red seaweed (Eucheuma, Kappaphycus, Gigartina species) through hot alkaline extraction, purification, and alcohol precipitation or filtration. Refined E407 achieves 95%+ pure carrageenan through cellulose co-precipitation filtration for crystal-clear gels, while PES E407a (Processed Eucheuma Seaweed) retains 15-20% insoluble cellulose for 20-30% cost savings with identical functionality and regulatory approval.
The three main types differ by sulfate ester positions creating unique cation interactions: Kappa (one sulfate, potassium reactive), Iota (two sulfates, calcium reactive), Lambda (three sulfates, non-gelling). Used as gelling agent, thickener, stabilizer (INS 407/407a) providing superior heat stability, freeze-thaw resistance, and synergy with dairy proteins across pH 4-10.
Types Comparison: Kappa: Brittle potassium gels (60-70°C melt), casein reactive, firm texture Iota: Elastic calcium gels (70-80°C melt), freeze-thaw stable, feathery break Lambda: Cold/hot thickener, no gel, high viscosity