Description
Acid hydrolysis of fish proteins combines with caramelized sugars to create a preserved sweet-sour flavor profile.
Technical
Acetic acid from vinegar denatures fish proteins while hydrolyzing collagen into gelatin, while Maillard reactions between onion sugars and amino acids create 2-furanmethanethiol and other aromatic compounds. Raisins contribute glucose and fructose for caramelization.
Culinary Significance
Simultaneously preserves fish while creating a complex balance of sweet (caramelized onions/raisins), sour (vinegar), and umami (hydrolyzed proteins).
Science
Primary Reaction
Acid hydrolysis + Maillard reaction
Parameters
Temperature
110°C optimal
4°C to 180°C range
Time
24 hours
12 hours – 72 hours
Equipment
Earthenware or glass marination vessels (avoid reactive metals)Copper pans for onion caramelization