Description
Formation of a three‑dimensional pectin network that solidifies fruit preparations into a stable gel.
Technical
Pectin molecules (polygalacturonic acid chains) cross‑link either via calcium‑mediated ionic bridges (egg‑box model) in low‑methoxyl pectin or through acid‑induced hydrogen bonding in high‑methoxyl pectin. The gel strength is governed by pH, calcium or sugar concentration, temperature, and the degree of methoxylation, which together dictate the extent of chain association and water immobilization.
Science
Primary Reaction
Ionic cross‑linking (Ca²⁺) and hydrogen‑bond driven gelation of polygalacturonic acid chains
Sensory Profile
Aroma ()
fruitysweetmildfreshjam-likecitrusyfloral
Wine Analogy
Similar to the pectin haze sometimes seen in unfiltered white wines