Description
Ionic cross-linking forms edible liquid-filled spheres through calcium-alginate gelation.
Technical
Sodium alginate undergoes cross-linking with calcium ions to form a stable gel membrane through ionic bonding between guluronic acid residues. The reaction follows the Egg-Box model where calcium bridges form between alginate chains.
Culinary Significance
Creatates liquid-filled caviar-like spheres with burst-in-mouth texture, enabling novel presentations of sauces and flavors.
Science
Primary Reaction
Calcium-alginate gelation
Parameters
Temperature
20°C optimal
4°C to 40°C range
Time
90 seconds
30 seconds – 5 minutes
Equipment
Slotted spoonPrecision scaleImmersion blenderSyringe/dropper