Description
Polysaccharide‑based techniques that use ion‑induced cross‑linking to create edible spheres or transparent gels.
Technical
Alginate forms a calcium‑cross‑linked network when exposed to Ca²⁺ ions, while gellan gum requires thermal dissolution followed by cooling to enable double‑helix aggregation and cation‑mediated junction zones. Precise control of polymer concentration, calcium source, temperature, pH and setting time determines firmness, clarity and shell thickness, allowing chefs to engineer distinct textural experiences.
Science
Primary Reaction
Ion‑induced cross‑linking of polysaccharide chains (Ca²⁺ bridges alginate or gellan helices)
Sensory Profile
Aroma ()
mildmarinevegetalneutralcleanslightly mineral
Origin & History
Civilization
Spain (molecular gastronomy) and Japan (microbial gellan research)