Description
Thin biodegradable films made from alginate and carrageenan extracted from seaweed waste.
Technical
Polysaccharides are solubilized by heating seaweed in water, forming dilute solutions that are cast and dried; calcium ions cross‑link alginate chains via the egg‑box model, while glycerol inserts between polymer chains to plasticize, producing a semi‑crystalline network with markedly reduced water solubility and enhanced flexibility.
Science
Primary Reaction
Ionic cross‑linking of alginate carboxylate groups with Ca²⁺ (egg‑box complexation) combined with hydrogen‑bonding plasticization by glycerol.
Sensory Profile
Aroma ()
marinebrinyearthyslightly sulfuricfresh seaweed
Wine Analogy
Mineral-driven white wines like Muscadet or Chablis
Coffee Analogy
Wet-processed Ethiopian coffees with marine notes