Description
A calcium‑mediated cross‑linking technique that forms protein gels without heat or shear.
Technical
Ca²⁺ ions from CaCl₂ neutralize negative charges on protein surfaces (e.g., casein micelles, soy proteins) and act as ionic bridges, creating a three‑dimensional network. The resulting gel is stabilized by calcium‑protein complexes, allowing rapid set‑up at controlled temperatures. Gel firmness can be tuned by adjusting CaCl₂ concentration, temperature, and pH.
Science
Primary Reaction
Ca²⁺ ions coordinate with negatively charged residues on protein chains, neutralizing surface charge and forming ionic cross‑links that generate a protein‑calcium network
Sensory Profile
Aroma ()
neutralmilkyslightly saltycleanmineral-like
Origin & History
Civilization
European cheese makers and Asian tofu artisans
Era