What You Need to Know
Low-acyl gellan gum undergoes cation-mediated helix aggregation (primarily Ca²⁺ or Mg²⁺) forming brittle, thermoreversible gels via double-helix junction zones. Unlike high-acyl gellan, it produces transparent structures due to reduced polymer entanglement.
Enables creation of delicate edible glass panels, jewel-like garnishes, and stable fluid gels for modernist plating.
Key Parameters
Temperature
90°C
40°C - 120°C
Time
5 minutes
2 minutes - 15 minutes
Equipment
Precision scaleImmersion circulatorSilicon molds
Steps
- 1.
Edible Stained Glass (El Bulli (2003)): Structural integrity for suspended pigments
- 2.
Crystal Consommé Cubes (The Fat Duck): Clarity preserves visual broth purity
The Science
Primary Reaction
Ionic gelation (divalent cation crosslinking)