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Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
Acid‑base neutralization gels are formed by reacting a polysaccharide such as sodium alginate with a divalent cation (e.g., calcium chloride).
Origin: Japanese (21st century) — Japan
See full technique reference →The Ca²⁺ ions cross‑link guluronic acid blocks in the alginate chain, creating a rapid, reversible gel network. Ionic bonds form within seconds, and the gel strength depends on alginate and CaCl₂ concentrations, temperature, and pH. The process is exploited in spherification and encapsulation techniques.
Primary Reaction
Sodium alginate + CaCl₂ → Ca‑alginate gel via ionic cross‑linking
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