carrageenan

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Scope note
A family of anionic polysaccharides that are obtained by alkaline extraction from some species of red seaweeds. There are three major types of carrageenan, which include iota-carrageenan (i-carrageenan), kappa-carrageenan (κ-carrageenan), and lambda-carrageenan (λ-carrageenan). In conservation, it is used as a hydrogel in paintings consolidation, among other uses.
carrageenan
Accepted term: 18-Nov-2024